10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

MARK ONE

☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the Quarterly Period ended June 30, 2019; or

☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the transition period from ________ to ________

ZION OIL & GAS, INC.

(Exact name of registrant as specified in its charter)

Delaware	20-0065053
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
12655 N Central Expressway, Suite 1000, Dallas, TX	75243
(Address of principal executive offices)	Zip Code

(214) 221-4610

(Registrant’s telephone number, including area code)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	☐	Accelerated filer	☒
Non-accelerated filer	☐	Smaller reporting company	☒
		Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common	ZN	Nasdaq Capital Market

As of August 5, 2019, Zion Oil & Gas, Inc. had outstanding 79,430,201 shares of common stock, par value $0.01 per share.

INDEX PAGE

	Page
PART I — FINANCIAL INFORMATION
Item 1 – Financial Statements – Unaudited	1
Condensed Balance Sheets – June 30, 2019 and December 31, 2018	1
Condensed Statements of Operations for the three and six months ended June 30, 2019 and 2018	2
Condensed Statement of Changes in Stockholders’ Equity for the three and six months ended June 30, 2019 and 2018	3-4
Condensed Statements of Cash Flows for the six months ended June 30, 2019 and 2018	5
Notes to Condensed Financial Statements	6
Item 2 – Management’s Discussion and Analysis of Financial Condition and Results of Operations	28
Item 3 – Quantitative and Qualitative Disclosures About Market Risk	40
Item 4 – Controls and Procedures	40
PART II — OTHER INFORMATION
Item 1 – Legal Proceedings	41
Item 1A – Risk Factors	41
Item 2 – Unregistered Sales of Equity Securities and Use of Proceeds	42
Item 3 – Defaults upon Senior Securities	42
Item 4 – Mine Safety Disclosures	42
Item 5 – Other Information	42
Item 6 – Exhibits	42
Exhibit Index	42
SIGNATURES	43

i

Zion Oil & Gas, Inc.

Condensed Balance Sheets as of

	June 30, 2019			December 31, 2018
	US$ thousands			US$ thousands
	(Unaudited)
Current assets
Cash and cash equivalents		3,077			2,791
Fixed short term bank deposits – restricted		1,103			1,325
Prepaid expenses and other		323			461
Other deposits		10			280
Governmental receivables		19			361
Other receivables		125			153
Total current assets		4,657			5,371
Unproved oil and gas properties, full cost method (see Note 4)		7,121			6,714
Property and equipment at cost
Net of accumulated depreciation of $481 and $455		134			156
Right of Use Lease Assets (see Note 7)		685			-
Other assets
Fixed short term bank deposits – restricted		-			9
Assets held for severance benefits		306			271
Total other assets		306			280
Total assets		12,903			12,521
Liabilities and Stockholders’ Equity
Current liabilities
Accounts payable		305			2,811
Lease obligation – current (see Note 7)		216			-
Asset retirement obligation		691			720
Derivative liability (see Note 6)		263			345
Accrued liabilities		489			958
Total current liabilities		1,964			4,834
Long-term liabilities
10% Senior convertible bonds, net of unamortized deferred financing cost of $50 and $63 and unamortized debt discount of $806 and $993 at June 30, 2019 and December 31, 2018 respectively (see Note 5)		2,398			2,211
Lease obligation – non-current (see Note 7)		516			-
Obligation under capital lease, net of current maturities of $10		24			30
Provision for severance pay		349			317
Total long-term liabilities		3,287			2,558
Total liabilities		5,251			7,392
Commitments and contingencies (see Note 8)
Stockholders’ equity
Common stock, par value $.01; Authorized: 200,000,000 shares at June 30, 2019: Issued and outstanding: 78,371,119 and 66,405,180 shares at June 30, 2019 and December 31, 2018 respectively		784			664
Additional paid-in capital		209,466			203,580
Accumulated deficit		(202,598	)		(199,115	)
Total stockholders’ equity		7,652			5,129
Total liabilities and stockholders’ equity		12,903			12,521

The accompanying notes are an integral part of the unaudited interim condensed financial statements.

1

Zion Oil & Gas, Inc.

Condensed Statements of Operations

	For the three months ended						For the six months ended
	June 30,						June 30,
	2019			2018			2019			2018
	US$ thousands			US$ thousands			US$ thousands			US$ thousands
	(Unaudited)			(Unaudited)			(Unaudited)			(Unaudited)
General and administrative		996			1,336			1,922			3,295
Impairment of unproved oil and gas properties		65			-			228			-
Other		554			680			1,109			1,233
Loss from operations		(1,615	)		(2,016	)		(3,259	)		(4,528	)
Other income (expense), net
Gain, (loss) on derivative liability		460			968			82			(2,566	)
Foreign exchange loss		(6	)		(69	)		-			(101	)
Financial expenses, net		(152	)		(124	)		(306	)		(297	)
Loss before income taxes		(1,313	)		(1,241	)		(3,483	)		(7,492	)
Income taxes		-			-			-			-
Net loss		(1,313	)		(1,241	)		(3,483	)		(7,492	)
Net loss per share of common stock
Basic and diluted (in US$)		(0.02	)		(0.02	)		(0.05	)		(0.13	)
Weighted-average shares outstanding
Basic and diluted (in thousands)		74,126			59,346			72,073			58,499

The accompanying notes are an integral part of the unaudited interim condensed financial statements.

2

Zion Oil & Gas, Inc.

Condensed Statement of Changes in Stockholders’ Equity

For the period ended June 30, 2018

	Common Stock				Additional paid-in		Accumulated
	Shares		Amounts		Capital		deficit			Total
	thousands		US$ thousands		US$ thousands		US$ thousands			US$ thousands
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)			(Unaudited)
Balances as of December 31, 2017		55,888		559		184,485		(160,604	)		24,440
Funds received from RO		656		7		3,074		—			3,081
Funds received from sale of DSPP units and shares		2,490		25		5,928		—			5,953
Value of bonds converted to shares		37		*		168		—			168
Bonds interest paid in shares		71		1		330		—			331
Funds received from option exercises		138		1		17		—			18
Value of options granted to employees, directors and others as non-cash compensation		—		—		1,581		—			1,581
Net loss		—		—		—		(7,492	)		(7,492	)
Balances as of June 30, 2018		59,280		593		195,583		(168,096	)		28,080

	Common Stock				Additional paid-in		Accumulated
	Shares		Amounts		Capital		deficit			Total
	thousands		US$ thousands		US$ thousands		US$ thousands			US$ thousands
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)			(Unaudited)
Balances as of March 31, 2018		57,345		573		189,699		(166,855	)		23,417
Funds received from RO		656		7		3,074		—			3,081
Funds received from sale of DSPP units and shares		1,070		11		2,107		—			2,118
Value of bonds converted to shares		5		*		20		—			20
Bonds interest paid in shares		71		1		330		—			331
Funds received from option exercises		133		1		17		—			18
Value of options granted to employees, directors and others as non-cash compensation		—		—		336		—			336
Net loss		—		—		—		(1,241	)		(1,241	)
Balances as of June 30, 2018		59,280		593		195,583		(168,096	)		28,080

3

For the period ended June 30, 2019

	Common Stock				Additional paid-in		Accumulated
	Shares		Amounts		Capital		deficit			Total
	thousands		US$ thousands		US$ thousands		US$ thousands			US$ thousands
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)			(Unaudited)
Balances as of December 31, 2018		66,405		664		203,580		(199,115	)		5,129
Funds received from sale of DSPP units and shares		11,486		115		5,521		—			5,636
Value of bonds converted to shares		5		*		2		—			2
Funds received from option exercises		53		1		—		—			1
Bond interest paid in shares		422		4		323		—			327
Value of options granted to employees, directors and others as non-cash compensation		—		—		40		—			40
Net loss		—		—		—		(3,483	)		(3,483	)
Balances as of June 30, 2019		78,371		784		209,466		(202,598	)		7,652

	Common Stock				Additional paid-in		Accumulated
	Shares		Amounts		Capital		deficit			Total
	thousands		US$ thousands		US$ thousands		US$ thousands			US$ thousands
	(Unaudited)		(Unaudited)		(Unaudited)		(Unaudited)			(Unaudited)
Balances as of March 31, 2019		71,066		711		206,077		(201,285	)		5,503
Funds received from sale of DSPP units and shares		6,878		69		3,039		—			3,108
Value of bonds converted to shares		5		*		2		—			2
Bond interest paid in shares		422		4		323		—			327
Value of options granted to employees, directors and others as non-cash compensation		—		—		25		—			25
Net loss		—		—		—		(1,313	)		(1,313	)
Balances as of June 30, 2019		78,371		784		209,466		(202,598	)		7,652

* Less than one thousand.

The accompanying notes are an integral part of the unaudited interim condensed financial statements.

4

Zion Oil & Gas, Inc.

Condensed Statements of Cash Flows

	For the six months ended June 30,
	2019			2018
	US$ thousands			US$ thousands
	(Unaudited)			(Unaudited)
Cash flows from operating activities
Net loss		(3,483	)		(7,492	)
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation		25			31
Loss on fixed asset disposal		-			3
Cost of options issued to employees, directors and others as non-cash compensation		40			1,253
Amortization of debt discount and interest related to convertible bonds		300			258
Change in derivative liability		(82	)		2,566
Impairment of unproved oil and gas properties		228			-
Change in assets and liabilities, net:
Other deposits		270			203
Prepaid expenses and other		138			109
Governmental receivables		342			669
Lease obligation – current		216			-
Lease obligation – non current		516			-
Right of Use Lease Assets		(685	)		-
Other receivables		28			(21	)
Severance pay		(3	)		7
Accounts payable		(79	)		(123	)
Asset retirement obligation		(29	)		-
Accrued liabilities		(158	)		212
Net cash used in operating activities		(2,416	)		(2,325	)
Cash flows from investing activities
Acquisition of property and equipment		(3	)		(10	)
Investment in unproved oil and gas properties		(3,157	)		(8,403	)
Net cash used in investing activities		(3,160	)		(8,413	)
Cash flows from financing activities
Payments related to capital lease		(6	)		(5	)
Proceeds from exercise of stock options		1			18
Proceeds from Rights Offering		-			3,081
Proceeds from issuance of stock and exercise of warrants		5,636			5,953
Net cash provided by financing activities		5,631			9,047
Net (decrease), increase in cash, cash equivalents and restricted cash		55			(1,691	)
Cash, cash equivalents and restricted cash – beginning of period		4,125			9,079
Cash, cash equivalents and restricted cash – end of period		4,180			7,388
Non-cash investing and financing activities:
Cost of options capitalized to oil & gas properties		-			328
Unpaid investments in oil & gas properties		136			3,388
Convertible Bond interest paid in shares		327			331
10% Senior Convertible Bonds converted to shares		2			168
Capitalized convertible bond interest attributed to oil and gas properties		38			156

* Less than one thousand

The accompanying notes are an integral part of the unaudited interim condensed financial statements.

Cash, cash equivalents and restricted cash, are comprised as follows:

	June 30, 2019		December 31, 2018
	US$ thousands		US$ thousands
Cash and cash equivalents		3,077		2,791
Restricted cash included in fixed short-term bank deposits		1,103		1,325
Restricted cash included in fixed long-term bank deposits		-		9
		4,180		4,125

5

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 1 - Nature of Operations, Basis of Presentation and Going Concern

A. Nature of Operations

Zion Oil & Gas, Inc., a Delaware corporation (“we,” “our,” “Zion” or the “Company”) is an oil and gas exploration company with a history of 19 years of oil & gas exploration in Israel. As of June 30, 2019, the Company has no revenues from its oil and gas operations.

Zion maintains its corporate headquarters in Dallas, Texas. We also have branch offices in Caesarea, Israel and Geneva, Switzerland. The purpose of the Israel branch is to support the Company’s operations in Israel, and the purpose of the Switzerland branch is to operate a foreign treasury center for the Company.

Exploration Rights/Exploration Activities

The Company currently holds one active petroleum exploration license onshore Israel, the Megiddo-Jezreel License, comprising approximately 99,000 acres. The Megiddo Jezreel #1 (“MJ #1”) exploratory well was spud on June 5, 2017 and drilled to a total depth (“TD”) of 5,060 meters (approximately 16,600 feet). Thereafter, the Company successfully cased and cemented the well while awaiting the approval of the testing protocol. The Ministry of Energy approved the well testing protocol on April 29, 2018.

During the fourth quarter of 2018, the Company’s testing protocol was concluded at the MJ #1 well. The test results confirmed that the MJ #1 well did not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000. During the three and six months ended June 30, 2019, the Company recorded a post-impairment charge of approximately $65,000 and $228,000, respectively.

The MJ#1 well provided Zion with information Zion believes is important for potential future exploration efforts within its license area. As with many frontier wildcat wells, the MJ#1 also left several questions unanswered.

While not meant to be an exhaustive list, a summary of what Zion believes to be key information learned in the MJ#1 well is as follows:

1.	The MJ#1 encountered much higher subsurface temperatures at a depth shallower than expected before drilling the well. In our opinion, this is significant because reaching a minimum temperature threshold is necessary for the generation of hydrocarbons from an organic-rich source rock.
2.	The known organic rich (potentially hydrocarbon bearing) Senonian age source rocks that are typically present in this part of Israel were not encountered as expected. Zion expected these source rocks to be encountered at approximately 1,000 meters in the MJ#1 well.
3.	MJ#1 had natural fractures, permeability (the ability of fluid to move through the rock) and porosity (pore space in rock) that allowed the sustained flow of formation fluid in the shallower Jurassic and lower Cretaceous age formations between approximately 1,200 and 1,800 meters. While no hydrocarbons were encountered, Zion believes this fact is nonetheless significant because it provides important information about possible reservoir pressures and the ability of fluids to move within the formation and to the surface.
4.	MJ#1 encountered oil in the Triassic Mohilla formation which Zion believes suggests an active deep petroleum system is in Zion’s license area. There was no natural permeability or porosity in the Triassic Mohilla formation to allow formation fluid to reach the surface naturally during testing, and thus the MJ#1 was not producible or commercial.
5.	The depths and thickness of the formations we encountered varied greatly from pre-drill estimates. This required the MJ#1 to be drilled to a much greater depth than previously expected. Zion has tied these revised formation depths to seismic data which will allow for more accurate interpretation and mapping in the future.

6

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 1 - Nature of Operations, Basis of Presentation and Going Concern (cont’d)

A summary of what Zion believes to be some key questions left to be answered are:

1.	Is the missing shallow Senonian age source rock a result of regional erosion, or is it missing because of a fault that cut the well-bore and could be reasonably expected to be encountered in the vicinity of the MJ#1 drill site? Zion believes this is an important question to answer because if the Senonian source rocks do exist in this area, the high temperatures encountered are sufficient to mature these source rocks and generate oil.
2.	Do the unusually high shallow subsurface temperatures extend regionally beyond the MJ#1 well, which could allow for the generation of hydrocarbons in the Senonian age source rock within our license area?
3.	As a consequence of seismic remapping, where does the MJ#1 well lie relative to the potential traps at the Jurassic and Triassic levels, and was the well location too low on the structures and deeper than the potential hydrocarbons within those traps?

As a result of these unanswered questions and with the information gained drilling the MJ#1 well, as of June 15, 2019, Zion is in process of obtaining landowner permits, along with advance acquisition preparation. We are negotiating with Acoustic Geophysical Services Kft (“AGS”), based in Budapest, Hungary, for all surface and subsurface seismic mapping. A pricing matrix will be provided according to designated source parameters. Source parameters consist of multiple options and pricing according to time and length of source requirements. The final survey area consists of approximately 72 square kilometers surrounding the MJ#1 well.

Zion received a multi-year license extension through December 2, 2020.

Zion’s ability to fully undertake all of these aforementioned activities is subject to its raising the needed capital from its continuing offerings, of which no assurance can be provided.

Megiddo-Jezreel Petroleum License, No. 401 (“MJL”)

The MJL was awarded on December 3, 2013 for a three-year primary term through December 2, 2016, with the possibility of additional one-year extensions up to a maximum of seven years. The MJL lies onshore, south and west of the Sea of Galilee, and the Company continues its exploration focus here as it appears to possess the key geologic ingredients of an active petroleum system with significant exploration potential. In late November 2016, The State of Israel’s Petroleum Commissioner officially approved Zion’s drilling date and license extension request.

On October 30, 2017, the Company sought a multi-year extension to its existing license. After receiving feedback from Israel’s Petroleum Commissioner, the Company submitted a revised extension request on November 9, 2017. On November 20, 2017, Israel’s Petroleum Commissioner officially approved the Company’s multi-year extension request on its Megiddo-Jezreel License No. 401, extending its validity to December 2, 2019 which was subsequently extended to December 2, 2020. Until recently, the Company remained subject to the following updated key license terms:

No.	Activity Description	Execution by:
1	Submit final report on the results of drilling	31 May 2018
2	Submit program for continuation of work under license	30 June 2018

On June 1, 2018, Zion submitted its Megiddo-Jezreel #1 End of Well Report (EOWR) for the Megiddo-Jezreel License No. 401, thus fulfilling its No. 1 Final Report license work plan obligation, shown above. 

7

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 1 - Nature of Operations, Basis of Presentation and Going Concern (cont’d)

On June 14, 2018 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary because we had still not completed testing and evaluating all planned testing zones. On July 1, 2018, Israel’s Petroleum Commissioner granted Zion’s work program report extension to November 1, 2018, as shown below.

No.	Activity Description	Execution by:
1	Submit program for continuation of work under license	1 November 2018

On October 16, 2018 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary because we had still not completed testing and evaluating all planned testing zones. On October 28, 2018, Israel’s Petroleum Commissioner granted Zion’s work program report extension to January 31, 2019, as shown below. 

No.	Activity Description	Execution by:
1	Submit program for continuation of work under license	31 January 2019

On January 31, 2019, Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary to finalize the work program. On February 3, 2019 Israel’s Petroleum Commissioner granted Zion’s work program report extension to February 28, 2019, as shown below:

Number	Activity Description	Execution by:
3	Submit program for continuation of work under license	28 February 2019

The continuation of work program was timely submitted to Israel’s Petroleum Commissioner and subsequently approved.

On February 24, 2019 and thereafter on February 26, 2019 Zion submitted its proposed 2019 WORK PROGRAM ON the Megiddo-Jezreel License No. 401. 

8

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 1 - Nature of Operations, Basis of Presentation and Going Concern (cont’d)

On February 28, 2019 Israel’s Petroleum Commissioner officially approved the revised and updated Work Program on the Megiddo-Jezreel License No. 401 as shown below:

Number	Activity description	Execution by:
1	Submission of seismic survey plan to the Commissioner and execution of an agreement with a contractor to perform	30 April 2019
2	Commence 3D seismic survey in an area of approximately 50 square kilometers	1 August 2019
3	Transfer of field material configuration and processed material to the Ministry pursuant to Ministry guidelines	15 December 2019
4	Submit interpretation report	20 February 2020

On February 24, 2019 Zion submitted a request to the Commissioner to extend the Megiddo-Jezreel License No. 401 up to December 2, 2020.

On February 28, 2019 the Commissioner approved the extension of the Megiddo-Jezreel License No. 401 up to December 2, 2020.

On April 30, 2019 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time is necessary for Zion to conduct a 3D survey in an area of approximately 72 square kilometers. This requires, among other things, extensive permitting activities with relevant local landowners, the Israel Land Authority (“ILA”), certain authorities and others throughout the seismic survey area and may not conclude prior to the beginning of the Jewish holidays in October and rainy season. This in turn would result in additional delays, as rain and mud are not conducive to the performance of a seismic survey which includes extensive use of vibrators.

Zion’s proposed new timelines and activity descriptions are shown below:

Number	Activity description	Execution by:
1	Submission of seismic survey plan to the Commissioner and execution of an agreement with a contractor to perform	30 November 2019
2	Commence 3D seismic survey in an area of approximately 72 square kilometers	1 April 2020
3	Transfer of field material configuration and processed material to the Ministry pursuant to Ministry guidelines	15 August 2020
4	Submit interpretation report	15 November, 2020

On May 1, 2019, Israel’s Petroleum Commissioner granted Zion’s work program report extension.

As previously disclosed, the Company required authorization from the ILA, the formal lessor of the land to Kibbutz Sde Eliyahu, on whose property the drilling pad is currently situated, to access and utilize the drill site (“surface use agreement”). The Company received this authorization on July 4, 2016. This was preceded by the Company’s May 15, 2016 signed agreement with the kibbutz. On January 11, 2017, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2017. On December 31, 2017, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2019. On July 1, 2019, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2020.

9

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 1 - Nature of Operations, Basis of Presentation and Going Concern (cont’d)

Zion’s Former Jordan Valley, Joseph, and Asher-Menashe Licenses

On March 29, 2015, the Energy Ministry approved the Company’s application to merge the southernmost portion of the Jordan Valley License into the Megiddo-Jezreel License. The Company has plugged all of its exploratory wells (in the former Joseph and Asher-Menashe Licenses) but acknowledges its obligation to complete the abandonment of these well sites in accordance with guidance from the Environmental Ministry and local officials.

B. Basis of Presentation

The accompanying unaudited interim condensed financial statements of Zion Oil & Gas, Inc. have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with Article 8-03 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments, consisting only of normal recurring accruals necessary for a fair statement of financial position, results of operations and cash flows, have been included. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the financial statements and the accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. The year-end balance sheet data presented for comparative purposes was derived from audited financial statements, but does not include all disclosures required by GAAP. The results of operations for the three and six months ended June 30, 2019 are not necessarily indicative of the operating results for the year ending December 31, 2019 or for any other subsequent interim period.

C. Going Concern 

The Company incurs cash outflows from operations, and all exploration activities and overhead expenses to date have been financed by way of equity or debt financing. The recoverability of the costs incurred to date is uncertain and dependent upon achieving significant commercial production. 

The Company’s ability to continue as a going concern is dependent upon obtaining the necessary financing to undertake further exploration and development activities and ultimately generating profitable operations from its oil and natural gas interests in the future. The Company’s current operations are dependent upon the adequacy of its current assets to meet its current expenditure requirements and the accuracy of management’s estimates of those requirements. Should those estimates be materially incorrect, the Company’s ability to continue as a going concern may be impaired. The financial statements have been prepared on a going concern basis, which contemplates realization of assets and liquidation of liabilities in the ordinary course of business. During the six months ended June 30, 2019, the Company incurred a net loss of approximately $3.5 million and had an accumulated deficit of approximately $203 million. These factors raise substantial doubt about the Company’s ability to continue as a going concern.

To carry out planned operations, the Company must raise additional funds through additional equity and/or debt issuances or through profitable operations. There can be no assurance that this capital or positive operational income will be available to the Company, and if it is not, the Company may be forced to curtail or cease exploration and development activities. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. 

10

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 2 - Summary of Significant Accounting Policies

A. Net Gain (Loss) per Share Data

Basic and diluted net (loss) gain per share of common stock, par value $0.01 per share (“Common Stock”), is presented in conformity with ASC 260-10 “Earnings Per Share.” Diluted net loss per share is the same as basic net loss per share, as the inclusion of 9,644,820 and 9,265,636 Common Stock equivalents in the six-month period ended June 30, 2019 and 2018 respectively, would be anti-dilutive.

B. Use of Estimates

The preparation of the accompanying financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. Such estimates include the valuation of unproved oil and gas properties, deferred tax assets, asset retirement obligations and legal contingencies. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. The Company adjusts such estimates and assumptions when facts and circumstances dictate. Illiquid credit markets, volatile equity, foreign currency, and energy markets have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in those estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.

C. Oil and Gas Properties and Impairment

The Company follows the full-cost method of accounting for oil and gas properties. Accordingly, all costs associated with acquisition, exploration and development of oil and gas reserves, including directly related overhead costs, are capitalized.

All capitalized costs of oil and gas properties, including the estimated future costs to develop proved reserves, are amortized on the unit-of-production method using estimates of proved reserves. Investments in unproved properties and major development projects are not amortized until proved reserves associated with the projects can be determined or until impairment occurs. If the results of an assessment indicate that the properties are impaired, the amount of the impairment is included in loss from continuing operations before income taxes, and the adjusted carrying amount of the proved properties is amortized on the unit-of-production method.

The Company’s oil and gas property represents an investment in unproved properties. These costs are excluded from the amortized cost pool until proved reserves are found or until it is determined that the costs are impaired. All costs excluded are reviewed at least quarterly to determine if impairment has occurred. The amount of any impairment is charged to expense since a reserve base has not yet been established. Impairment requiring a charge to expense may be indicated through evaluation of drilling results, relinquishing drilling rights or other information.

During the fourth quarter of 2018, the Company testing protocol was concluded at the Megiddo Jezreel #1 (“MJ #1”) well. The test results confirmed that the MJ #1 well did not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000 (see Note 4). During the three and six months ended June 30, 2019, the Company recorded post-impairment charges of approximately $65,000 and $228,000, respectively.

Currently, the Company has no economically recoverable reserves and no amortization base. The Company’s unproved oil and gas properties consist of capitalized exploration costs of $7,121,000 and $6,714,000 as of June 30, 2019, and December 31, 2018, respectively.

11

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 2 - Summary of Significant Accounting Policies (cont’d)

D. Fair Value Measurements

The Company follows Accounting Standards Codification (ASC) 820, “Fair Value Measurements and Disclosures,” as amended by Financial Accounting Standards Board (FASB) Financial Staff Position (FSP) No. 157 and related guidance. Those provisions relate to the Company’s financial assets and liabilities carried at fair value and the fair value disclosures related to financial assets and liabilities. ASC 820 defines fair value, expands related disclosure requirements, and specifies a hierarchy of valuation techniques based on the nature of the inputs used to develop the fair value measures. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, assuming the transaction occurs in the principal or most advantageous market for that asset or liability.

There are three levels of inputs to fair value measurements - Level 1, meaning the use of quoted prices for identical instruments in active markets; Level 2, meaning the use of quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or are directly or indirectly observable; and Level 3, meaning the use of unobservable inputs.

The Company uses Level 1 inputs for its fair value measurements whenever there is an active market, with actual quotes, market prices, and observable inputs on the measurement date. The Company uses Level 2 inputs for fair value measurements whenever there are quoted prices for similar securities in an active market or quoted prices for identical securities in an inactive market. The Company uses Level 3 inputs in the Binomial Model used for the valuation of the derivative liability. 

E. Derivative Liabilities

In accordance with ASC 815-40-25 and ASC 815-10-15 Derivatives and Hedging and ASC 480-10-25 Liabilities-Distinguishing Liabilities from Equity, the embedded derivatives associated with the Convertible Bonds are accounted for as a liability during the term of the related Convertible Bonds (see Note 6).

F. Stock-Based Compensation

ASC 718, “Compensation – Stock Compensation,” prescribes accounting and reporting standards for all share-based payment transactions in which employee and non-employee services are acquired. Transactions include incurring liabilities, or issuing or offering to issue shares, options, and other equity instruments such as employee stock ownership plans and stock appreciation rights. Share-based payments to employees and non-employees, including grants of stock options, are recognized as compensation expense in the financial statements based on their fair values. That expense is recognized over the requisite service period (usually the vesting period).

The Company accounts for stock-based compensation issued to non-employees and consultants in accordance with the provisions of ASC 505-50, “Equity – Based Payments to Non-Employees.” Measurement of share-based payment transactions with non-employees is based on the fair value of whichever is more reliably measurable: (a) the goods or services received; or (b) the equity instruments issued. The fair value of the share-based payment transaction is determined at the earlier of performance commitment date or performance completion date.

G. Related parties

Parties are considered to be related to the Company if the parties, directly or indirectly, through one or more intermediaries, control, are controlled by, or are under common control with the Company. Related parties also include principal owners of the Company, its management, members of the immediate families of principal owners of the Company and its management and other parties with which the Company may deal if one party controls or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests. All transactions with related parties are recorded at fair value of the goods or services exchanged.

H. Recently Adopted Accounting Pronouncements

ASU 2016-02 and ASU 2018-01 – Leases (Topic 842)

In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”) in order to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under previous GAAP. ASU 2016-02 requires that a lessee should recognize a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term on the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (including interim periods within those periods) using a modified retrospective approach and early adoption is permitted. Zion adopted ASU 2016-02 in the first quarter of 2019. Presently, Zion has operating leases for office space in Dallas, Texas and in Caesarea, Israel plus various leases for motor vehicles. These leases have been accounted for under ASU 2016-02 in 2019 by establishing a right-of-use asset and a corresponding current lease liability and non-current lease liability. Zion is not subject to any loan covenants and therefore, the increase in assets and liabilities does not have a material impact on its business.

12

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 2 - Summary of Significant Accounting Policies (cont’d)

In January 2018, the FASB issued ASU 2018-01, “Land Easement Practical Expedient for Transition to “Topic 842.”

The amendments in this Update provide an optional transition practical expedient to not evaluate under Topic 842 existing or expired land easements that were not previously accounted for as leases under Topic 840, Leases. An entity that elects this practical expedient should evaluate new or modified land easements under Topic 842 beginning at the date that the entity adopts Topic 842. An entity that does not elect this practical expedient should evaluate all existing or expired land easements in connection with the adoption of the new lease requirements in Topic 842 to assess whether they meet the definition of a lease. The Company does not have any land easements and believes that this ASU 2018-01 has no effect on the Company.

ASU 2016-15 and ASU 2016-08 – Statement of Cash Flows (Topic 230)

In August 2016, the FASB issued AS 2016-15, “Classification of Certain Cash Receipts and Cash Payments”, which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The effective date for ASU 2016-15 is for fiscal years beginning after December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact of adopting ASU 2016-15 on our financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) (“ASU 2016-18”), which requires that restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total cash amounts shown on the statement of cash flows. The effective date for ASU 2016-18 is for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We adopted ASU 2016-18 effective January 1, 2018. The adoption of ASU 2016-18 had no impact on our retained earnings, and no impact to our net income on an ongoing basis. Adoption of the new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash, or restricted cash equivalents. The amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statements of cash flows. The amendments have been applied using a retrospective transition method to each period presented, as required.

ASU 2018-05 – Income Taxes (Topic 740)

In March 2018, the FASB issued ASU 2018-05, “Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118”. This ASU expresses the view of the staff regarding application of Topic 740, Income Taxes, in the reporting period that includes December 22, 2017, the date on which the Tax Cuts and Jobs Act (H.R.1, An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018) was signed into law. The Company is currently evaluating the impact of adopting ASU 2018-05 on our financial statements.  

ASU 2016-09

In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, or ASU No. 2016-09. The areas for simplification in this Update involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. For public entities, the amendments in this Update are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted in any interim or annual period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. Amendments related to the presentation of employee taxes paid on the statement of cash flows when an employer withholds shares to meet the minimum statutory withholding requirement should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term should be applied prospectively. An entity may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. The Company believes that this ASU No. 2016-09 has no impact on our financial statements.

13

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 2 - Summary of Significant Accounting Policies (cont’d)

The Company does not believe that the adoption of any recently issued accounting pronouncements in 2019 had a significant impact on our financial position, results of operations, or cash flow, except for ASC Update No. 2015-03—Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. For public business entities, the amendments in this Update are effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. At June 30, 2019 and December 31, 2018, the Company reclassified $50,000 and $63,000, respectively, in deferred offering costs from an asset account and applied it to the outstanding debt balance (see Note 5).

Note 3 - Stockholders’ Equity

A. 2011 Equity Incentive Stock Option Plan

During the six months ended June 30, 2019, the Company granted the following options from the 2011 Equity Incentive Plan for employees, directors and consultants, to purchase as non-cash compensation (the exercise of penny stock options is taxable at full market value on the date of exercise):

i. Options to purchase 25,000 shares of Common Stock to one senior officer at an exercise price of $0.01 per share. The options vested upon grant and are exercisable through January 6, 2029. The fair value of the options at the date of grant amounted to approximately $10,000.

ii. Options to purchase 100,000 shares of Common Stock were granted to one senior officer at an exercise price of $0.01 per share. The options are exercisable through May 1, 2029. However, the vesting and exercisability of these options is subject to the following schedule: (a) 50,000 options vest on September 1, 2019 and (b) the remaining 50,000 options vest on January 1, 2020. The fair value of the options at the date of grant amounted to $55,000.

During the six months ended June 30, 2018, the Company granted the following options from the 2011 Equity Incentive Plan for employees, directors and consultants, to purchase as non-cash compensation (the exercise of penny stock options are taxable on the date of exercise):

i.	Options to purchase 330,000 shares of Common Stock to 23 senior officers, staff members and consultants at an exercise price of $.01 per share. The options have vesting schedules of 165,000 shares on June 30, 2018 and 165,000 shares on December 31, 2018. The options are exercisable through January 1, 2028. The fair value of the options at the date of grant amounted to approximately $759,000.
ii.	Options to purchase 110,000 shares of Common Stock to five senior officers at an exercise price of $0.01 per share. The options vested upon grant and are exercisable through January 4, 2028. The fair value of the options at the date of grant amounted to approximately $250,000.
iii.	Options to purchase 55,000 shares of Common Stock to three consultants an exercise price of $0.01 per share. The options vested upon grant. However, the exercisability of these options is according to the following schedule: (a) 27,500 options are exercisable on June 30, 2018 and (b) the remaining 27,500 options are exercisable on June 30, 2019. The fair value of the options at the date of grant amounted to $222,000.
iv.	Options to purchase 14,000 shares of Common Stock to seven staff members at an exercise price of $0.01 per share. The options vested upon grant and are exercisable through April 5, 2028. The fair value of the options at the date of grant amounted to approximately $62,000.

B. 2011 Non-Employee Directors Stock Option Plan

During the six months ended June 30, 2019, the Company did not grant any qualified (market value) options from the 2011 Non-Employee Directors Stock Option Plan to its directors.

During the six months ended June 30, 2018, the Company granted the following qualified (market value) options from the 2011 Non-Employee Directors Stock Option Plan for directors to purchase as non-cash compensation:

i. Options to purchase 400,000 shares of Common Stock to eight board members at an exercise price of $2.31 per share. The options vested upon grant and are exercisable through January 1, 2024. The fair value of the options at the date of grant amounted to approximately $428,000.

14

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 3 - Stockholders’ Equity (cont’d)

C. Stock Options

The stock option transactions since January 1, 2019 are shown in the table below:

	Number of shares			Weighted Average exercise price
				US$
Outstanding, December 31, 2018		4,788,443			1.37
Changes during 2019 to:
Granted to employees, officers, directors and others *		125,000			0.01
Expired/Cancelled/Forfeited		(385,693	)		2.07
Exercised		(52,500	)		0.01
Outstanding, June 30, 2019		4,475,250			1.29
Exercisable, June 30, 2019		4,375,250			1.32

* The receipt of a stock option grant by the grantee recipient is a non-taxable event according to the Internal Revenue Service. The grantee who later chooses to exercise penny stock options must recognize the market value in income in the year of exercise.

The following table summarizes information about stock options outstanding as of June 30, 2019:

Shares underlying outstanding options (non-vested)								Shares underlying outstanding options (fully vested)
Range of exercise price		Number outstanding		Weighted average remaining contractual life (years)		Weighted Average Exercise price		Range of exercise price		Number Outstanding		Weighted average remaining contractual life (years)		Weighted Average Exercise price
US$						US$		US$						US$
	—		—		—		—		0.01		15,000		4.37		0.01
	—		—		—		—		0.01		15,000		4.76		0.01
	—		—		—		—		0.01		5,000		4.95		0.01
	—		—		—		—		0.01		10,000		6.26		0.01
	—		—		—		—		0.01		25,000		6.50		0.01
	—		—		—		—		0.01		305,000		6.93		0.01
	—		—		—		—		0.01		525,000		7.50		0.01
	—		—		—		—		0.01		10,000		7.51		0.01
	—		—		—		—		0.01		60,000		7.79		0.01
	0.01		100,000		9.83		0.01		0.01		40,000		8.25		0.01
	—		—		—		—		0.01		180,000		8.50		0.01
	—		—		—		—		0.01		85,000		8.51		0.01
	—		—		—		—		0.01		45,000		8.66		0.01
	—		—		—		—		0.01		6,000		8.77		0.01
	—		—		—		—		0.01		25,000		9.52		0.01
	—		—		—		—		1.33		25,000		3.83		1.33
	—		—		—		—		1.38		108,000		1.51		1.38
	—		—		—		—		1.38		105,307		5.52		1.38
	—		—		—		—		1.55		400,000		2.93		1.55
	—		—		—		—		1.67		340,000		1.26		1.67
	—		—		—		—		1.67		405,943		5.26		1.67
	—		—		—		—		1.70		218,500		3.48		1.70
	—		—		—		—		1.75		400,000		4.02		1.75
	—		—		—		—		1.78		25,000		5.19		1.78
	—		—		—		—		1.87		25,000		2.59		1.87
	—		—		—		—		1.95		25,000		0.76		1.95
	—		—		—		—		1.96		25,000		0.18		1.96
	—		—		—		—		2.03		25,000		1.84		2.03
	—		—		—		—		2.31		400,000		4.51		2.31
									2.61		471,500		2.43		2.61
	—		—		—		—		4.15		25,000		5.01		4.15
	0.01		100,000				0.01		0.01-4.15		4,375,250				1.32

15

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 3 - Stockholders’ Equity (cont’d)

Granted to employees

The following table sets forth information about the weighted-average fair value of options granted to employees and directors during the year, using the Black Scholes option-pricing model and the weighted-average assumptions used for such grants:

	For the six months ended June 30,
	2019			2018
Weighted-average fair value of underlying stock at grant date	$	0.53		$	2.34
Dividend yields		—			—
Expected volatility		87%-88	%		68%-75	%
Risk-free interest rates		2.31%-2.53	%		2.01%-2.58	%
Expected lives (in years)		5.00-5.34			3.00-5.50
Weighted-average grant date fair value	$	0.52		$	1.73

Granted to non-employees

The following table sets forth information about the weighted-average fair value of options granted to non-employees during the year, using the Black Scholes option-pricing model and the weighted-average assumptions used for such grants:

	For the six months ended June 30,
	2019		2018
Weighted-average fair value of underlying stock at grant date	$	—	$	3.37
Dividend yields		—		—
Expected volatility		—		73%-76	%
Risk-free interest rates		—		2.46%-2.81	%
Expected lives (in years)		—		10.00
Weighted-average grant date fair value	$	—	$	3.36

16

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 3 - Stockholders’ Equity (cont’d)

The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the options.

The expected life represents the weighted average period of time that options granted are expected to be outstanding. The expected life of the options granted to employees and directors is calculated based on the Simplified Method as allowed under Staff Accounting Bulletin No. 110 (“SAB 110”), giving consideration to the contractual term of the options and their vesting schedules, as the Company does not have sufficient historical exercise data at this time. The expected life of the option granted to non-employees equals their contractual term. In the case of an extension of the option life, the calculation was made on the basis of the extended life.

D. Compensation Cost for Warrant and Option Issuances

The following table sets forth information about the compensation cost of warrant and option issuances recognized for employees and directors:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	40		1,279

The following table sets forth information about the compensation cost of warrant and option issuances recognized for non-employees:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	—		302

The following table sets forth information about the compensation cost of option issuances recognized for employees and non-employees and capitalized to Unproved Oil & Gas properties:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	—		328

As of June 30, 2019, there was approximately $35,000 of unrecognized compensation cost, related to non-vested stock options granted under the Company’s various stock option plans. The cost is expected to be recognized during the years 2019 and 2020.

E. Dividend Reinvestment and Stock Purchase Plan (“DSPP”)

On March 27, 2014, the Company launched its Dividend Reinvestment and Stock Purchase Plan (the “DSPP”) pursuant to which stockholders and interested investors can purchase shares of the Company’s Common Stock as well as units of the Company’s securities directly from the Company. The terms of the DSPP are described in the Prospectus Supplement originally filed on March 31, 2014 (the “Original Prospectus Supplement”) with the Securities and Exchange Commission (“SEC”) under the Company’s effective registration Statement on Form S-3, as thereafter amended.

On January 13, 2015, the Company amended the Original Prospectus Supplement (“Amendment No. 3”) to provide for a unit option (the “Unit Option”) under the DSPP comprised of one share of Common Stock and three Common Stock purchase warrants with each unit priced at $4.00. Each warrant afforded the participant the opportunity to purchase the Company’s Common Stock at a warrant exercise price of $1.00. Each of the three warrants series has different expiration dates that have been extended.

The warrants became exercisable on May 2, 2016 and, in the case of ZNWAB continued to be exercisable through May 2, 2017 (1 year) and, in the case of ZNWAC continued to be exercisable through May 2, 2018 for ZNWAC (2 years) and May 2, 2019 for ZNWAD (3 years), respectively, at a per share exercise price of $1.00.

As of May 2, 2017, any outstanding ZNWAB warrants expired.

As of May 2, 2018, any outstanding ZNWAC warrants expired.

17

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 3 - Stockholders’ Equity (cont’d)

On December 4, 2018, the Company extended the termination date of the ZNWAD Warrant by one (1) year from the expiration date of May 2, 2019 to May 2, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAD Warrant by one (1) year from the expiration date of May 2, 2020 to May 2, 2021.

On November 1, 2016, the Company launched a unit offering (the “Unit Program”) under the Company’s DSPP pursuant to which participants could purchase units comprised of seven shares of Common Stock and seven Common Stock purchase warrants, at a per unit purchase price of $10. The warrant is referred to as “ZNWAE.”

The ZNWAE warrants became exercisable on May 1, 2017 and continue to be exercisable through May 1, 2020 at a per share exercise price of $1.00.

On May 29, 2019, the Company extended the termination date of the ZNWAE Warrant by one (1) year from the expiration date of May 1, 2020 to May 1, 2021.

The warrant terms provide that if the Company’s Common Stock trades above $5.00 per share at the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company may, in its sole discretion, accelerate the termination of the warrant upon providing 60 days advanced notice to the warrant holders.

On February 23, 2017, the Company filed a Form S-3 with the SEC (Registration No. 333-216191) as a replacement for the Form S-3 (Registration No. 333-193336), for which the three year period ended March 31, 2017, along with the base Prospectus and Supplemental Prospectus. The Form S-3, as amended, and the new base Prospectus became effective on March 10, 2017, along with the Prospectus Supplement that was filed and became effective on March 10, 2017. The Prospectus Supplement under Registration No. 333-216191 describes the terms of the DSPP and replaces the prior Prospectus Supplement, as amended, under the prior Registration No. 333-193336.

On May 22, 2017, the Company launched a new unit offering (the “New Unit Program”). The New Unit Program consisted of a new combination of common stock and warrants, a new time period in which to purchase under the program, and a new unit price, but otherwise the same unit program features, conditions and terms in the Prospectus Supplement applied. The New Unit Program terminated on July 12, 2017. This New Unit Program enabled participants to purchase Units of the Company’s securities where each Unit (priced at $250.00 each) was comprised of (i) the number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company’s Common Stock as reported on the NASDAQ on the unit purchase date and (ii) Common Stock purchase warrants to purchase an additional 25 shares of Common Stock at a warrant exercise price of $1.00 per share. The warrant is referred to as “ZNWAF.”

All ZNWAF warrants became exercisable on August 14, 2017 and continue to be exercisable through August 14, 2020 at a per share exercise price of $1.00.

On May 29, 2019, the Company extended the termination date of the ZNWAF Warrant by one (1) year from the expiration date of August 14, 2020 to August 14, 2021.

The warrant terms provide that if the Company’s Common Stock trades above $5.00 per share as the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company has the sole discretion to accelerate the termination date of the warrant upon providing 60 days advanced notice to the warrant holders.

On October 16, 2017, the Company initiated another Unit Option Program which terminated on December 6, 2017. This Unit Option Program enabled participants to purchase Units of the Company’s securities where each Unit (priced at $250.00 each) was comprised of (i) a certain number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company’s Common Stock as reported on the NASDAQ on the unit purchase date and (ii) Common Stock purchase warrants to purchase an additional 15 shares of Common Stock at a warrant exercise price of $1.00 per share. The warrant is referred to as “ZNWAG.”

The warrants became exercisable on January 8, 2018 and continue to be exercisable through January 8, 2021 at a per share exercise price of $1.00. The warrant terms provide that if the Company’s Common Stock trades above $5.00 per share as the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company has the sole discretion to accelerate the termination date of the warrant upon providing 60 days advanced notice to the warrant holders.

On February 1, 2018, the Company initiated another Unit Option Program which terminated on February 28, 2018. The Unit Option consisted of Units of our securities where each Unit (priced at $250.00 each) was comprised of (i) 50 shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional 50 shares of Common Stock. The investor’s Plan account was credited with the number of shares of the Company’s Common Stock acquired under the Units purchased. Each warrant affords the investor the opportunity to purchase one share of Company Common Stock at a warrant exercise price of $5.00. The warrant is referred to as “ZNWAH.”

18

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 3 - Stockholders’ Equity (cont’d)

The warrants became exercisable on April 2, 2018 and continue to be exercisable through April 2, 2020 at a per share exercise price of $5.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of April 2, 2019 to April 2, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAH Warrant by one (1) year from the expiration date of April 2, 2020 to April 2, 2021.

On August 21, 2018, the Company initiated another Unit Option, and it terminated on September 26, 2018. The Unit Option consisted of Units of the Company’s securities where each Unit (priced at $250.00 each) was comprised of (i) a certain number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company’s publicly traded common stock as reported on the NASDAQ on the Unit Purchase Date and (ii) Common Stock purchase warrants to purchase an additional twenty-five (25) shares of Common Stock. The investor’s Plan account was credited with the number of shares of the Company’s Common Stock acquired under the Units purchased. Each warrant affords the investor the opportunity to purchase one share of Company Common Stock at a warrant exercise price of $1.00. The warrant is referred to as “ZNWAJ.”

The warrants became exercisable on October 29, 2018 and continue to be exercisable through October 29, 2020 at a per share exercise price of $1.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of October 29, 2019 to October 29, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAJ Warrant by one (1) year from the expiration date of October 29, 2020 to October 29, 2021.

On December 10, 2018, the Company initiated another Unit Option and it terminated on January 23, 2019. The Unit Option consisted of Units of the Company’s securities where each Unit (priced at $250.00 each) is comprised of (i) two hundred and fifty (250) shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional two hundred and fifty (250) shares of Common Stock at a per share exercise price of $0.01. The investor’s Plan account was credited with the number of shares of the Company’s Common Stock and Warrants that are acquired under the Units purchased. Each warrant affords the participant the opportunity to purchase one share of our Common Stock at a warrant exercise price of $0.01. The warrant is referred to as “ZNWAK.”

The warrants became exercisable on February 25, 2019 and continue to be exercisable through February 25, 2020 at a per share exercise price of $0.01.

On May 29, 2019, the Company extended the termination date of the ZNWAK Warrant by one (1) year from the expiration date of February 25, 2020 to February 25, 2021.

On April 24, 2019, the Company’s most recent Unit Option began and it terminated on June 26, 2019, after the Company, on June 5, 2019, extended the termination date of the Unit Option.

The Unit Option consists of Units of the Company’s securities where each Unit (priced at $250.00 each) is comprised of (i) two hundred and fifty (250) shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional fifty (50) shares of Common Stock at a per share exercise price of $2.00. The investor’s Plan account will be credited with the number of shares of the Company’s Common Stock and Warrants that are acquired under the Units purchased. For Plan participants who enroll into the Unit Program with the purchase of at least one Unit and also enroll in the separate Automatic Monthly Investments (“AMI”) program at a minimum of $50.00 per month or more, will receive an additional twenty-five (25) warrants at an exercise price of $2.00 during this Unit Option Program. The twenty-five (25) additional warrants are for enrolling into the AMI program. Existing subscribers to the AMI are entitled to the additional twenty-five (25) warrants once, if they purchase at least one (1) unit during the Unit program. Each warrant affords the participant the opportunity to purchase one share of our Common Stock at a warrant exercise price of $2.00. The warrant is referred to as “ZNWAL.”

The warrants will become exercisable on August 26, 2019 and continue to be exercisable through August 26, 2021 at a per share exercise price of $2.00.

For the three and six months ended June 30, 2019, net proceeds of approximately $3,108,000 and $5,636,000, respectively, were raised under the DSPP program.

For the three and six months ended June 30, 2018, net proceeds of approximately $2,118,000 and $5,953,000, respectively, were raised under the DSPP program.

The warrants represented by the ticker ZNWAA are tradable on the NASDAQ market. However, all of the other warrants characterized above, in the table below, and throughout this Form 10-Q, are not tradeable and are used internally for classification and accounting purposes only.

19

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 3 - Stockholders’ Equity (cont’d)

F. Warrant Descriptions

The price and the expiration dates for the series of warrants to investors are as follows * :

		Period of Grant	US$		Expiration Date
ZNWAA Warrants	B	March 2013 – December 2014		2.00	January 31, 2021
ZNWAD Warrants	A,B	January 2015 – March 2016		1.00	May 02, 2021
ZNWAE Warrants	B	November 2016 – March 2017		1.00	May 01, 2021
ZNWAF Warrants	A,B	May 2017 – July 2017		1.00	August 14, 2021
ZNWAG Warrants		October 2017 – December 2017		1.00	January 08, 2021
ZNWAH Warrants	A,B	February 2018		5.00	April 2, 2021
ZNWAI Warrants	A,B	April 2018 – May 2018		3.00	June 29, 2021
ZNWAJ Warrants	B	August 2018 – September 2018		1.00	October 29, 2021
ZNWAK Warrants	B	December 2018 – January 2019		0.01	February 25, 2021
ZNWAL Warrants		July 2019 – August 2019		2.00	August 26, 2021

*	Zion’s ZNWAB Warrants expired on May 2, 2017, and the ZNWAC Warrants expired on May 2, 2018
A	On December 4, 2018, the Company extended the termination date of the Warrants by one (1) year.
B	On May 29, 2019, the Company extended the termination date of the Warrants by one (1) year.

G. Subscription Rights Offering

On April 2, 2018 the Company announced an offering (“2018 Subscription Rights Offering”) through American Stock Transfer & Trust Company, LLC (the “Subscription Agent”), at no cost to the shareholders, of non-transferable Subscription Rights to purchase Rights (each “Right” and collectively, the “Rights”) of its securities to persons who owned shares of our Common Stock on April 13, 2018 (“the Record Date”). Pursuant to the 2018 Subscription Rights Offering, each holder of shares of common stock on the Record Date received non-transferable rights to subscribe for Rights, with each Right comprised of one share of the Company Common Stock, par value $0.01 per share (the “Common Stock”) and one Common Stock Purchase Warrant to purchase an additional one share of Common Stock. Each Right could be purchased at a per Right subscription price of $5.00. Each Warrant affords the investor the opportunity to purchase one share of the Company Common Stock at a warrant exercise price of $3.00. The warrant is referred to as “ZNWAI.”

The warrants became exercisable on June 29, 2018 and continue to be exercisable through June 29, 2020 at a per share exercise price of $3.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of June 29, 2019 to June 29, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAI Warrant by one (1) year from the expiration date of June 29, 2020 to June 29, 2021.

Each shareholder received .10 (one tenth) of a subscription right (i.e. one subscription right for each 10 shares owned) for each share of the Company’s Common Stock owned on the Record Date.

The 2018 Subscription Rights Offering terminated on May 31, 2018. The Company raised net proceeds of approximately $3,038,000, from the Rights Offering, after deducting related fees and expenses of $243,000.

H. Warrant Table

The warrant transactions since January 1, 2019 are shown in the table below:

Warrants	Exercise Price		Warrant Termination Date	Outstanding Balance, 12/31/18		Warrants Issued		Warrants Exercised			Warrants Expired		Outstanding Balance, 6/30/19
ZNWAA	$	2.00	1/31/2021		1,498,804		0		0			0		1,498,804
ZNWAD	$	1.00	5/2/2021		243,853		0		0			0		243,853
ZNWAE	$	1.00	5/2/2021		2,144,510		0		(40	)		0		2,144,470
ZNWAF	$	1.00	8/14/2021		359,610		0		0			0		359,610
ZNWAG	$	1.00	1/8/2021		240,578		0		0			0		240,578
ZNWAH	$	5.00	4/19/2021		372,400		0		0			0		372,400
ZNWAI	$	3.00	6/29/2021		640,735		0		(5	)		0		640,730
ZNWAJ	$	1.00	10/29/2021		546,050		0		(25	)		0		546,025
ZNWAK	$	0.01	2/25/2021		0		673,600		(199,500	)		0		474,100
Outstanding warrants					6,046,540		673,600		(199,570	)		0		6,520,570

20

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 4 - Unproved Oil and Gas Properties, Full Cost Method

Unproved oil and gas properties, under the full cost method, are comprised as follows:

	June 30, 2019		December 31, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		1,243		1,242
Capitalized salary costs		1,668		1,579
Capitalized interest costs		715		677
Legal costs, license fees and other preparation costs		3,484		3,216
Other costs		11		-
		*7,121		*6,714

* The unproved oil and gas properties balance at June 30, 2019 and at December 31, 2018 contains approximately $136,000 and $2,946,000, respectively, in unpaid amounts.

Impairment of unproved oil and gas properties comprised as follows:

	June 30, 2019		June 30, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		159		-
Other costs		69		-
		228		-

Changes in Unproved oil and gas properties during the six months ended June 30, 2019 and 2018 are as follows:

	June 30, 2019		June 30, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		1		7,326
Capitalized salary costs		89		423
Capitalized interest costs		38		156
Legal costs, license fees and other preparation costs		268		596
Other costs		11		143
		*407		*8,644

· Inclusive of non-cash amounts of approximately $174,000 and $3,872,000 during the six months ended June 30, 2019, and 2018, respectively.

21

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 5 - Senior Convertible Bonds

Rights Offering -10% Senior Convertible Notes due May 2, 2021

On October 21, 2015, the Company filed with the SEC a prospectus supplement for a rights offering. Under the rights offering, the Company distributed at no cost, 360,000 non-transferable subscription rights to subscribe for, on a per right basis, two 10% Convertible Senior Bonds par $100 due May 2, 2021 (the “Notes”), to shareholders of the Company’s Common Stock on October 15, 2015, the record date for the offering. Each whole subscription right entitled the participant to purchase two convertible bonds at a purchase price of $100 per bond. Effective October 21, 2015, the Company executed a Supplemental Indenture, as issuer, with the American Stock Transfer & Trust Company, LLC, a New York limited liability trust company (“AST”), as trustee for the Notes (the “Indenture”).

On March 31, 2016, the rights offering terminated.

On May 2, 2016, the Company issued approximately $3,470,000 aggregate principal amount of Notes in connection with the rights offering. The Company received net proceeds of approximately $3,334,000, from the issuance of the Notes, after deducting fees and expenses of $136,000 incurred in connection with the offering. These costs have been discounted as deferred offering costs. 

The Notes contain a convertible option that gives rise to a derivative liability, which is accounted for separately from the Notes (see below and Note 6). Accordingly, the Notes were initially recognized at fair value of approximately $1,844,000, which represents the principal amount of $3,470,000 from which a debt discount of approximately $1,626,000 (which is equal to the fair value of the convertible option) was deducted. 

During the six months ended June 30, 2019, the Company recorded approximately $13,000 in amortization expense related to the deferred financing costs, approximately $187,000 in debt discount amortization, and approximately $10,000 related to financing gains associated with notes converted to shares. The Notes are governed by the terms of the Indenture. The Notes are senior unsecured obligations of the Company and bear interest at a rate of 10% per year, payable annually in arrears on May 2 of each year, commencing May 2, 2017. The Notes will mature on May 2, 2021, unless earlier redeemed by the Company or converted by the holder.

Interest and principal may be paid, at the Company’s option, in cash or in shares of the Company’s Common Stock. The number of shares for the payment of interest in shares of Common Stock, in lieu of the cash amount, will be based on the average of the closing prices of the Company’s Common Stock as reported by Bloomberg L.P. for the 30 trading days preceding the record date for the payment of interest; such record date has been designated and will always be the 10^th business day prior to the interest payment date on May 2 of each year. The number of shares for the payment of principal, in lieu of the cash amount, shall be based upon the average of the closing price of the Company’s Common Stock as reported by Bloomberg L.P. for the 30 trading days preceding the principal repayment date; such record date has been designated as the trading day immediately prior to the 30-day period preceding the maturity date of May 2, 2021. Fractional shares were not issued, and the final number of shares were rounded up to the next whole share.

On May 2, 2019, the Company paid its annual 10% interest to its bondholders of record on April 18, 2019. The interest was paid-in-kind (“PIK”) in the form of Common Stock. An average of the Company stock price of $0.774 was determined based on the 30 trading days prior to the record date of April 18, 2019. This figure was used to divide into 10% of the par value of the bonds held by the holders. The Company issued 422,426 shares to the accounts of its bondholders.

At any time prior to the close of business on the business day immediately preceding April 2, 2021, holders may convert their notes into Common Stock at the conversion rate of 44 shares per $100 bond (which is equivalent to a conversion rate of approximately $2.27 per share). The conversion rate is subject to adjustment from time to time upon the occurrence of certain events, including, but not limited to, the issuance of stock dividends and payment of cash dividends.

Beginning May 3, 2018, the Company was entitled to redeem for cash the outstanding Notes at an amount equal to the principal and accrued and unpaid interest, plus a 10% premium. No “sinking fund” is provided for the Notes due May 2, 2021, which means that the Company is not required to periodically redeem or retire the Notes due May 2, 2021.

22

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 5 - Senior Convertible Bonds (cont’d)

Through the six months ended June 30, 2019 approximately 122 convertible bonds of $100 each, have been converted at a conversion rate of approximately $2.27 per share. As a result, the Company issued approximately 5,368 shares of its Common Stock and recorded approximately $10,000 in financial gains during the same period.

	June 30, 2019			December 31, 2018
	US$ thousands			US$ thousands
10% Senior Convertible Bonds, on the day of issuance	$	3,470		$	3,470
Unamortized Debt discount, net	$	(806	)	$	(993	)
Bonds converted to shares	$	(216	)	$	(203	)
Offering cost, net	$	(50	)	$	(63	)
10% senior Convertible bonds – Long Term Liability	$	2,398		$	2,211

Capitalized interest for the three and six months ended June 30, 2019 were $28,000 and $38,000 compared to $71,000 and $156,000 for the three and six months ended June 30, 2018.

Interest expenses for the three and six months ended June 30, 2019 were $54,000 and $111,000 compared to $0 and $0 for the three and six months ended June 30, 2018.

Note 6 - Derivative Liability

The Notes issued by the Company and discussed in Note 5 contain a convertible option that gives rise to a derivative liability.

The debt instrument the Company issued includes a make-whole provision, which provides that in the event of conversion by the investor under certain circumstances, the issuer is required to deliver to the holder additional consideration beyond the settlement of the conversion obligation.

Because time value make-whole provisions are not clearly and closely related to the debt host and would meet the definition of a derivative if considered freestanding, they are evaluated under the indexation guidance to determine whether they would be afforded the scope exception pursuant to ASC 815-10-15-74(a). This evaluation is generally performed in conjunction with the analysis of the embedded conversion feature.

The Company has measured its derivative liability at fair value and recognized the derivative value as a current liability and recorded the derivative value on its balance sheet. Changes in the fair value recorded are recorded as a gain or loss in the accompanying statement of operations.

The valuation of the Notes was done by using the Binomial Model, a well-accepted option-pricing model, and based on the Notes’ terms and other parameters the Company identified as relevant for the valuation of the Notes’ Fair Value.

The Binomial Model used the forecast of the Company share price during the Note’s contractual term.

As of June 30, 2019, the Company’s liabilities that are measured at fair value are as follows:

	June 30, 2019				December 31, 2018
	Level 3		Total		Level 3		Total
	US$ thousands		US$ thousands		US$ thousands		US$ thousands
Fair value of derivative liability		263		263		345		345

23

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 6 - Derivative Liability (cont’d)

Change in value of derivative liability during 2019 are as follows:

	US$ thousands
Derivative liability fair value at December 31, 2018		345
Gain on derivative liability		(82	)
Derivative liability fair value at June 30, 2019		263

The following table presents the assumptions that were used for the model as of June 30, 2019:

	June 30, 2019			December 31, 2018
Convertible Option Fair Value of approximately	$	263,000		$	345,000
Annual Risk-free Rate		1.75	%		2.47	%
Volatility		117.22	%		115.35	%
Expected Term (years)		1.84			2.34
Convertible Notes Face Value	$	3,254,900		$	3,266,700
Expected annual yield on Regular Notes		28.77	%		28.77	%
Price of the Underlying Stock	$	0.76		$	0.42

The Company recognized a gain on derivative liability of $460,000 for the three months ended June 30, 2019 and a gain on derivative liability of $82,000 for the six months ended June 30, 2019. The Company recognized a gain on derivative liability of $968,000 for the three months ended June 30, 2018 and a loss on derivative liability of $2,566,000 for the six months ended June 30, 2018. A slight change in an unobservable input like volatility could have a significant impact on the fair value measurement of the derivative liability.

Note 7 - Right of use leases assets and leases obligations

The Company is a lessee in several non-cancelable operating leases, primarily for transportation and office spaces.

The table below presents the operating lease assets and liabilities recognized on the balance sheets as of June 30, 2019:

	June 30, 2019		December 31, 2018
	US$ thousands		US$ thousands
Operating lease assets	$	685	$	-
Operating lease liabilities:
Current operating lease liabilities	$	216	$	-
Non-current operating lease liabilities	$	516	$	-
Total operating lease liabilities	$	732	$	-

24

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 7 - Right of use leases assets and leases obligations (cont’d)

The depreciable lives of operating lease assets and leasehold improvements are limited by the expected lease term.

The Company’s leases generally do not provide an implicit rate, and therefore the Company uses its incremental borrowing rate as the discount rate when measuring operating lease liabilities. The incremental borrowing rate represents an estimate of the interest rate the Company would incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis over the term of a lease within a particular currency environment. The Company used incremental borrowing rates as of January 1, 2019 for operating leases that commenced prior to that date.

The Company’s weighted average remaining lease term and weighted average discount rate for operating leases as of June 30, 2019 are:

	June 30, 2019
Weighted average remaining lease term (years)		3.7
Weighted average discount rate		6.0	%

The table below reconciles the undiscounted future minimum lease payments (displayed by year and in the aggregate) under non-cancelable operating leases with terms of more than one year to the total operating lease liabilities recognized on the condensed balance sheets as of June 30, 2019:

	US$ thousands
July 1, 2019 through December 31, 2019		275
2020		261
2021		136
2022		136
2023		80
Thereafter		-
Total undiscounted future minimum lease payments		888
Less: portion representing imputed interest		(155	)
Total undiscounted future minimum lease payments		733

Operating lease costs were $64,000 and $132,000 for the three and six months ended June 30, 2019, respectively. Operating lease costs are included within general and administrative expenses on the statements of income.

Cash paid for amounts included in the measurement of operating lease liabilities were $68,000 and $139,000 for the three and six months ended June 30, 2019, and this amount is included in operating activities in the statements of cash flows. Right-of-use assets obtained in exchange for new operating lease liabilities were $819,000 for the six months ended June 30, 2019.

25

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 8 - Commitments and Contingencies

A. Securities and Exchange Commission (“SEC”) Investigation

As previously disclosed by the Company, on June 21, 2018, Zion received a subpoena to produce documents from the Fort Worth office of the SEC informing the Company of the existence of a non-public, fact-finding inquiry into the Company. Prior to the receipt of the subpoena on June 21, 2018, Zion had no previous communication with the SEC on this issue and was unaware of this investigation. The SEC stated that “the investigation and the subpoena do not mean that we have concluded that [Zion] or anyone else has violated the law.” To date, Zion has furnished all required documents to the SEC and will continue to fully cooperate with the investigation.

The Company cannot predict when this matter will be resolved or what further action, if any, the SEC may take in connection with it.

B. Litigation

Following the commencement of the SEC investigation, on August 9, 2018, a putative class action (the “class action”) Complaint was filed against Zion, Victor G. Carrillo, the Company’s Chief Executive Officer at such time, and Michael B. Croswell Jr., the Company’s Chief Financial Officer (collectively, the “Defendants”) in the U.S. District Court for the Northern District of Texas. On November 16, 2018, the Court entered an Order in the class action appointing lead plaintiffs and approving lead counsel and on January 22, 2019, an Amended Complaint was filed. On February 1, 2019, a Corrected Amended Class Action Complaint was filed. The suit alleges violations of Section 10(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Rule 10b-5 promulgated thereunder by the SEC and Section 11 of the Securities Act of 1933 (the “Securities Act”) against all defendants and alleges violations of Section 20(a) of the Exchange Act and Section 15 of the Securities Act against the individual defendants. The alleged class period is from February 13, 2018 through November 20, 2018. On March 13, 2019, a Motion to Dismiss Plaintiffs’ Corrected Amended Complaint was filed on behalf of Zion, Victor Carrillo and Michael B. Croswell, Jr., pleading numerous grounds in support of their Motion to Dismiss. On April 29, 2019 Plaintiffs filed a Response to Defendants’ Motion to Dismiss, and on May 29, 2019 Defendants filed a Reply to Plaintiffs’ Response.

 By Verified Consolidated Stockholder Derivative Complaint filed on March 4, 2019, three (3) stockholder derivative lawsuits previously filed in federal district court in Delaware on September 10, 2018, November 1, 2018, and November 21, 2018 were consolidated into one lawsuit filed derivatively and purportedly on behalf of the Company against Victor G. Carrillo, Michael B. Croswell, Jr., John M. Brown, Dustin L. Guinn, Forest A. Garb, Kent S. Siegel, Paul Oroian, William H. Avery, the Estate of Yehezkel Druckman, Lee Russell, Justin W. Furnace, Gene Scammahorn, Ralph F. DeVore, and Martin M. van Brauman. The suit alleges breach of fiduciary duty, unjust enrichment, violations of Section 14(a) of the Exchange Act and conspiracy to “facilitate and disguise” other alleged wrongdoings. The “Relevant Period” of alleged wrongdoing spans from February 13, 2018 and continues through the present. The suit seeks unspecified damages to be awarded to the Company, orders directing the Company and individual defendants to make certain corporate governance reforms, restitution, and fees and costs. On April 18, 2019, a Motion to Dismiss Plaintiffs’ Complaint was filed on behalf of all defendants pleading numerous grounds in support of their Motion to Dismiss. On June 3, 2019 Plaintiffs filed a Response to Defendants’ Motion to Dismiss, and on July 3, 2019 Defendants filed a Reply to Plaintiffs’ Response.

On September 25, 2018, another lawsuit was filed in the 68^th district court, Dallas County, Texas derivatively and purportedly on behalf of the Company against John M. Brown, Forrest A. Garb, Kent S. Siegel, Michael B. Croswell, Jr., Dustin L. Guinn, Victor G. Carrillo, Paul Oroian, William H. Avery, Justin W. Furnace, Gene Scammahorn, Martin M. van Brauman, and Lee R. Russell and the Company as a nominal defendant. This suit alleges claims for breaches of fiduciary duty and unjust enrichment against the individual defendants in connection with certain public statements made by the Company from March 12, 2018 to May 30, 2018. On March 29, 2019, this lawsuit was voluntarily dismissed by Plaintiff without prejudice to its subsequent refiling.

On October 29, 2018, Zion received a shareholder request to inspect books and records pursuant to Section 220 of the Delaware General Corporation Law for the purpose of investigating potential corporate mismanagement and breaches of fiduciary duty in connection with public statements made by the Company from March 12, 2018 to May 30, 2018.  The Company responded to this request.

The Company disputes the above claims and has made an advanced deposit of $500,000 to defense counsel for the cost of defending the litigation. The Company carries insurance that is applicable to these claims. Because of the uncertainties of litigation, it is not feasible to predict or determine the outcome of these matters, to guarantee that there will be no liability, or to reasonably estimate any loss in excess of its coverage. However, the Company intends to pursue a vigorous defense to the claims.

From time to time, the Company may also be subject to routine litigation, claims or disputes in the ordinary course of business. The Company defends itself vigorously in all such matters. However, we cannot predict the outcome or effect of any of the litigation or any other pending litigation or claims.

26

Zion Oil & Gas, Inc.

Condensed Notes to Financial Statements (Unaudited)

Note 8 - Commitments and Contingencies (cont’d)

C. Environmental and Onshore Licensing Regulatory Matters

The Company is engaged in oil and gas exploration and production and may become subject to certain liabilities as they relate to environmental cleanup of well sites or other environmental restoration procedures and other obligations as they relate to the drilling of oil and gas wells or the operation thereof. Various guidelines have been published in Israel by the State of Israel’s Petroleum Commissioner and Energy and Environmental Ministries as it pertains to oil and gas activities. Mention of these older guidelines was included in previous Zion filings.

On March 15, 2018, the Energy Ministry issued new guidelines regarding a uniform reporting manner by which the operator must submit to the Commissioner data and materials regarding lawful exploration and production activities. The guidelines detail the timeline, data, forms, format, media and materials (such as rock cuttings, cores, gas and oil samples) that must be submitted for seismic and drilling activities.

On April 8, 2019 the Energy Ministry issued new procedural guidelines regarding a uniform reporting manner by which the rights holder in a license must submit a quarterly report regarding a summary of license history, the nature, scope, location and results of the exploration work, specification of the amounts expended for the exploration work, and the results and interpretation of the exploration work and basic data on which these results and interpretation are based. The guidelines will be binding as from the date of submission of the report for the third quarter 2019.

The Company believes that these new regulations are likely to continue to increase the expenditures associated with obtaining new exploration rights and drilling new wells. The Company expects that an additional financial burden could occur as a result of requiring cash reserves that could otherwise be used for operational purposes. In addition, these new regulations are likely to continue to increase the time needed to obtain all of the necessary authorizations and approvals to drill and production test exploration wells.

D. Bank Guarantees

As of June 30, 2019, the Company provided Israeli-required bank guarantees to various governmental bodies (approximately $1,010,000) and others (approximately $85,000) with respect to its drilling operation in an aggregate amount of approximately $1,095,000. The (cash) funds backing these guarantees and additional amounts added to support currency fluctuations as required by the bank are held in restricted interest-bearing accounts and are reported on the Company’s balance sheets as fixed short-term bank deposits – restricted, and fixed long-term bank deposits – restricted. 

E. Risks

Market risk is a broad term for the risk of economic loss due to adverse changes in the fair value of a financial instrument. These changes may be the result of various factors, including interest rates, foreign exchange rates, commodity prices and/or equity prices. In the normal course of doing business, we are exposed to the risks associated with foreign currency exchange rates and changes in interest rates.

Foreign Currency Exchange Rate Risks. A portion of our expenses, primarily labor expenses and certain supplier contracts, are denominated in New Israeli Shekels (“NIS”). As a result, we have significant exposure to the risk of fluctuating exchange rates with the U.S. Dollar (“USD”), our primary reporting currency. During the period January 1, 2019 through June 30, 2019, the USD has fluctuated by approximately 4.9% against the NIS (the USD has weakened relative to the NIS). By contrast, during the period January 1, 2018 through December 31, 2018, the USD fluctuated by approximately 8.1% against the NIS (the USD strengthened relative to the NIS). Continued weakening of the US dollar against the NIS will result in higher operating costs from NIS denominated expenses. To date, we have not hedged any of our currency exchange rate risks, but we may do so in the future.

Interest Rate Risk. Our exposure to market risk relates to our cash and investments. We maintain an investment portfolio of short-term bank deposits and money market funds. The securities in our investment portfolio are not leveraged, and are, due to their very short-term nature, subject to minimal interest rate risk. We currently do not hedge interest rate exposure. Because of the short-term maturities of our investments, we do not believe that a change in market interest rates would have a significant negative impact on the value of our investment portfolio except for reduced income in a low interest rate environment. At June 30, 2019, we had cash, cash equivalents and short-term bank deposits, inclusive of restricted cash, of approximately $4,180,000. The weighted average annual interest rate related to our cash and cash equivalents for the six months ended June 30, 2019 was approximately 0.13%.

The primary objective of our investment activities is to preserve principal while at the same time maximizing yields without significantly increasing risk. To achieve this objective, we invest our excess cash in short-term bank deposits and money market funds that may invest in high quality debt instruments.

Note 9 - Subsequent Events

(i)	Approximately $379,000 was collected through the Company’s ongoing DSPP program during the period July 1 through 31, 2019.
(ii)	On July 1, 2019, options to purchase 100,000 shares of Common Stock were granted to one senior officer at an exercise price of $0.01 per share. The options are fully vested upon grant and are exercisable through July 1, 2029. The fair value of the options at the date of grant amounted to approximately $35,000.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

THE FOLLOWING DISCUSSION SHOULD BE READ IN CONJUNCTION WITH OUR UNAUDITED INTERIM FINANCIAL STATEMENTS AND THE RELATED NOTES TO THOSE STATEMENTS INCLUDED IN THIS FORM 10-Q. SOME OF OUR DISCUSSION IS FORWARD-LOOKING AND INVOLVES RISKS AND UNCERTAINTIES. FOR INFORMATION REGARDING RISK FACTORS THAT COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS, REFER TO THE DISCUSSION OF RISK FACTORS IN THE “DESCRIPTION OF BUSINESS” SECTION OF OUR ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2018, FILED WITH THE SECURITIES AND EXCHANGE COMMISSION.

Forward-Looking Statements

Certain statements made in this discussion are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements may materially differ from actual results.

Forward-looking statements can be identified by terminology such as “may”, “should”, “expects”, “intends”, “anticipates”, “believes”, “estimates”, “predicts”, or “continue” or the negative of these terms or other comparable terminology and include, without limitation, statements regarding:

● our ability to raise sufficient capital to successfully acquire, interpret, and analyze 3-D seismic data and continue with exploratory efforts within our license area;

● the going concern qualification in our financial statements;

● our liquidity and our ability to raise capital to maintain operations and finance our overall exploration and development activities;

● The outcome of the current SEC investigation and the resulting class action lawsuit and derivative litigation against us;

● our ability to obtain new license areas to continue our petroleum exploration program;

● our ability to explore for and develop natural gas and oil resources successfully and economically within our license areas;

● our ability to maintain the exploration license rights to continue our petroleum exploration program;

● the availability of equipment, such as seismic equipment, drilling rigs, and production equipment;

● the impact of governmental regulations, permitting and other legal requirements in Israel relating to onshore exploratory drilling;

● our estimates of the time frame within which future exploratory activities will be undertaken;

● changes in our exploration plans and related budgets;

● the quality of existing and future license areas with regard to, among other things, the existence of reserves in economic quantities;

● anticipated trends in our business;

● our future results of operations;

● our capital expenditure program;

● future market conditions in the oil and gas industry; and

● the demand for oil and natural gas, both locally in Israel and globally.

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Overview

Zion Oil and Gas, Inc., a Delaware corporation, is an oil and gas exploration company with a history of 19 years of oil and gas exploration in Israel. We were incorporated in Florida on April 6, 2000 and reincorporated in Delaware on July 9, 2003. We completed our initial public offering in January 2007. Our common stock, par value $0.01 per share (the “Common Stock”) currently trades on the Nasdaq Capital Market under the symbol “ZN” and our Common Stock warrant under the symbol “ZNWAA.”

The Company currently holds one active petroleum exploration license onshore Israel, the Megiddo-Jezreel License, comprising approximately 99,000 acres. The Megiddo Jezreel #1 (“MJ #1”) site was completed in early March 2017, after which the drilling rig and associated equipment were mobilized to the site. Performance and endurance tests were completed, and the MJ #1 exploratory well was spud on June 5, 2017 and drilled to a total depth (“TD”) of 5,060 meters (approximately 16,600 feet). Thereafter, the Company obtained three open-hole wireline log suites (including a formation image log), and the well was successfully cased and cemented. The Ministry of Energy approved the well testing protocol on April 29, 2018.

During the fourth quarter of 2018, the Company testing protocol was concluded at the MJL well. The test results confirmed that the MJ #1 well does not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000. The Company recorded a post-impairment charge of $65,000 and $228,000 for the three and six months ended June 30, 2019, respectively.

While the well was not commercially viable, Zion learned a great deal from the drilling and testing of this well. We believe that the drilling and testing of this well carried out the testing objectives which may support further evaluation and potential further exploration efforts within our License area.

As a result of the information gained drilling the MJ#1 well, Zion now believes it is prudent and consistent with good industry practice to try and answer some of the questions raised by the drilling with a focused 3D seismic imaging shoot of approximately 72 square kilometers surrounding the MJ#1 well. See discussion under Summary of Current and Former License Area.

At present, we have no revenues or operating income. Our ability to generate future revenues and operating cash flow will depend on the successful exploration and exploitation of our current and any future petroleum rights or the acquisition of oil and/or gas producing properties, and the volume and timing of such production. In addition, even if we are successful in producing oil and gas in commercial quantities, our results will depend upon commodity prices for oil and gas, as well as operating expenses including taxes and royalties.

Our executive offices are located at 12655 North Central Expressway, Suite 1000, Dallas, Texas 75243, and our telephone number is (214) 221-4610. Our branch office’s address in Israel is 9 Halamish Street, North Industrial Park, Caesarea 3088900, and the telephone number is +972-4-623-8500. Our website address is: www.zionoil.com.

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Current Exploration and Operation Efforts

Megiddo-Jezreel Petroleum License

The Company currently holds one active petroleum exploration license onshore Israel, the Megiddo-Jezreel License, comprising approximately 99,000 acres. The Megiddo Jezreel #1 (“MJ #1”) exploratory well was spud on June 5, 2017 and drilled to a total depth (“TD”) of 5,060 meters (approximately 16,600 feet). Thereafter, the Company successfully cased and cemented the well while awaiting the approval of the testing protocol. The Ministry of Energy approved the well testing protocol on April 29, 2018.

During the fourth quarter of 2018, the Company’s testing protocol was concluded at the MJ #1 well. The test results confirmed that the MJ #1 well did not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000. The Company recorded a post-impairment charge of $65,000 for the three months ended June 30, 2019 and $228,000 for the six months ended June 30, 2019.

The MJ#1 well provided Zion with information Zion believes is important for potential future exploration efforts within its license area. As with many frontier wildcat wells, the MJ#1 also left several questions unanswered.

While not meant to be an exhaustive list, a summary of what Zion believes to be key information learned in the MJ#1 well is as follows:

1.	The MJ#1 encountered much higher subsurface temperatures at a depth shallower than expected before drilling the well. In our opinion, this is significant because reaching a minimum temperature threshold is necessary for the generation of hydrocarbons from an organic-rich source rock.
2.	The known organic rich (potentially hydrocarbon bearing) Senonian age source rocks that are typically present in this part of Israel were not encountered as expected. Zion expected these source rocks to be encountered at approximately 1,000 meters in the MJ#1 well.
3.	MJ#1 had natural fractures, permeability (the ability of fluid to move through the rock) and porosity (pore space in rock) that allowed the sustained flow of formation fluid in the shallower Jurassic and lower Cretaceous age formations between approximately 1,200 and 1,800 meters. While no hydrocarbons were encountered, Zion believes this fact is nonetheless significant because it provides important information about possible reservoir pressures and the ability of fluids to move within the formation and to the surface.
4.	MJ#1 encountered oil in the Triassic Mohilla formation which Zion believes suggests an active deep petroleum system is in Zion’s license area. There was no natural permeability or porosity in the Triassic Mohilla formation to allow formation fluid to reach the surface naturally during testing, and thus the MJ#1 was not producible or commercial.
5.	The depths and thickness of the formations we encountered varied greatly from pre-drill estimates. This required the MJ#1 to be drilled to a much greater depth than previously expected. Zion has tied these revised formation depths to seismic data which will allow for more accurate interpretation and mapping in the future.

A summary of what Zion believes to be some key questions left to be answered are:

1.	Is the missing shallow Senonian age source rock a result of regional erosion, or is it missing because of a fault that cut the well-bore and could be reasonably expected to be encountered in the vicinity of the MJ#1 drill site? Zion believes this is an important question to answer because if the Senonian source rocks do exist in this area, the high temperatures encountered are sufficient to mature these source rocks and generate oil.
2.	Do the unusually high shallow subsurface temperatures extend regionally beyond the MJ#1 well, which could allow for the generation of hydrocarbons in the Senonian age source rock within our license area?
3.	As a consequence of seismic remapping, where does the MJ#1 well lie relative to the potential traps at the Jurassic and Triassic levels, and was the well location too low on the structures and deeper than the potential hydrocarbons within those traps?

As a result of these unanswered questions and with the information gained drilling the MJ#1 well, as of June 15,^, 2019, Zion is in process of obtaining landowner permits, along with advance acquisition preparation. We are negotiating with Acoustic Geophysical Services Kft (“AGS”), based in Budapest, Hungary, for all surface and subsurface seismic mapping. A pricing matrix will be provided according to designated source parameters. Source parameters consist of multiple options and pricing according to time and length of source requirements. The final survey area consists of approximately 72 square kilometers surrounding the MJ#1 well. Equipment will be mobilized from Eastern Europe to accommodate the scale of the program. The specialized equipment will allow for a wide 3D survey enabling Zion to image near surface and deep horizons further enhancing the prior seismic 2D data sets.

The MJ3D will be the largest onshore 3D survey acquired in Israel and will provide Zion with an additional tool to assist with the questions that arose following the drilling and testing of the MJ#1 well. Zion will request for quotation in Q3 2019 seismic processing services for the final data set. Interpretation is estimated to start early Q4 2019 allowing for well design on a go forward basis. All of the above activities are subject to our raising the needed capital through our current DSPP program.

Zion received a multi-year license extension through December 2, 2020.

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Zion’s ability to fully undertake all of these aforementioned activities is subject to its raising the needed capital from its continuing offerings, of which no assurance can be provided.

Map 1. Zion’s Megiddo-Jezreel Petroleum Exploration License as of June 30, 2019.

The Megiddo-Jezreel License (No. 401) was awarded on December 3, 2013 for a three-year primary term through December 2, 2016 with the possibility of additional one-year extensions up to a maximum of seven years. The Megiddo-Jezreel License lies onshore, south and west of the Sea of Galilee, and we continue our exploration focus here as it appears to possess the key geologic ingredients of an active petroleum system with significant exploration potential.

On November 20, 2017, Israel’s Petroleum Commissioner officially approved Zion’s multi-year extension request on its Megiddo-Jezreel License No. 401, extending its validity to December 2, 2019, and on February 28, 2019, a further extension to December 2, 2020 was granted. The Megiddo-Jezreel License is therefore scheduled to terminate on December 2, 2020. In addition, the Company’s surface use agreement was extended through December 3, 2019 by the Israel Land Authority.

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The Company remained subject to the following updated key license terms:

No.	Activity Description	Execution by:
1	Submit final report on the results of drilling	31 May 2018
2	Submit program for continuation of work under license	30 June 2018

On June 1, 2018, Zion submitted its Megiddo-Jezreel #1 End of Well Report (EOWR) for the Megiddo-Jezreel License No. 401, thus fulfilling our No. 1 End of Well Report license work plan obligation, shown above. 

On June 14, 2018 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary because we had still not completed testing and evaluating all planned testing zones. On July 1, 2018, Israel’s Petroleum Commissioner granted our work program report extension to November 1, 2018.

No.	Activity Description	Execution by:
1	Submit program for continuation of work under license	1 November 2018

On October 29, 2018 Zion received approval from the Petroleum Commissioner for an Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary because we had still not completed testing and evaluating all planned testing zones.

No.	Activity Description	Execution by:
1	Submit program for continuation of work under license	31 January 2019

On January 31, 2019, Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary to finalize the work program. On February 3, 2019 Israel’s Petroleum Commissioner granted Zion’s work program report extension to February 28, 2019, as shown below:

Number	Activity Description	Execution by:
1	Submit program for continuation of work under license	28 February 2019

The continuation of work program was timely submitted to the Israeli Petroleum Commissioner and subsequently approved.

Activity Description

Received approval for an extension of the MJ#1 License through December 2, 2020

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On February 24, 2019 and thereafter on February 26, 2019 Zion submitted its proposed 2019 WORK PROGRAM ON the Megiddo-Jezreel License No. 401.

On February 28, 2019 Israel’s Petroleum Commissioner officially approved the revised and updated Work Program on the Megiddo-Jezreel License No. 401 as shown below:

Number	Activity description	Execution by:
1	Submission of seismic survey plan to the Commissioner and execution of an agreement with a contractor to perform	30 April 2019
2	Commence 3D seismic survey in an area of approximately 50 square kilometers	1 August 2019
3	Transfer of field material configuration and processed material to the Ministry pursuant to Ministry guidelines	15 December 2019
4	Submit interpretation report	20 February 2020

On February 24, 2019 Zion submitted a request to the Commissioner to extend the Megiddo-Jezreel License No. 401 up to December 2, 2020.

On February 28, 2019 the Commissioner approved the extension of the Megiddo-Jezreel License No. 401 up to December 2, 2020.

On April 30, 2019 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time is necessary for Zion to conduct a 3D survey in an area of approximately 72 square kilometers. This requires, among others, extensive permitting activities with relevant local landowners, the ILA, certain authorities and others throughout the seismic survey area may not conclude prior to the beginning of the Jewish holidays in October and rainy season. This in turn would result in additional delay, as rain and mud are not conducive to the performance of a seismic survey which includes extensive use of vibrators.

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Zion’s proposed new timelines and activity descriptions are shown below:

Number	Activity description	Execution by:
1	Submission of seismic survey plan to the Commissioner and execution of an agreement with a contractor to perform	15 June 2019
2	Commence 3D seismic survey in an area of approximately 72 square kilometers	30 September 2020
3	Transfer of field material configuration and processed material to the Ministry pursuant to Ministry guidelines	15 August 2020
4	Submit interpretation report	15 November, 2020

On May 1, 2019, Israel’s Petroleum Commissioner granted Zion’s work program report extension.

As previously disclosed, the Company required authorization from the ILA, the formal lessor of the land to Kibbutz Sde Eliyahu, on whose property the drilling pad is currently situated, to access and utilize the drill site (“surface use agreement”). The Company received this authorization on July 4, 2016. This was preceded by the Company’s May 15, 2016 signed agreement with the kibbutz. On January 11, 2017, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2017. On December 31, 2017, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2019. On July 1, 2019, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2020.

Zion’s Former Asher-Menashe and Joseph Licenses

Zion has plugged all of its exploratory wells on its former Asher-Menashe and Joseph License areas, and the reserve pits have been evacuated, but acknowledges its obligation to complete the abandonment of these well sites in accordance with guidance from the Energy Ministry, Environmental Ministry and local officials.

Onshore Licensing, Oil and Gas Exploration and Environmental Guidelines

The Company is engaged in oil and gas exploration and production and may become subject to certain liabilities as they relate to environmental cleanup of well sites or other environmental restoration procedures and other obligations as they relate to the drilling of oil and gas wells or the operation thereof. Various guidelines have been published in Israel by the State of Israel’s Petroleum Commissioner, the Energy Ministry, and the Environmental Ministry in recent years as it pertains to oil and gas activities. Mention of these guidelines was included in previous Zion Oil & Gas filings.

We acknowledge that these new regulations are likely to increase the expenditures associated with obtaining new exploration rights and drilling new wells. The Company expects that additional financial burdens could occur as a result of the Ministry requiring cash reserves that could otherwise be used for operational purposes.

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Capital Resources Highlights

We need to raise significant funds to finance the continued exploration efforts and maintain orderly operations. To date, we have funded our operations through the issuance of our securities and convertible debt. We will need to continue to raise funds through the issuance of equity and/or debt securities (or securities convertible into or exchangeable for equity securities). No assurance can be provided that we will be successful in raising the needed capital on terms favorable to us (or at all).

The Dividend Reinvestment and Stock Purchase Plan

On March 27, 2014, the Company launched its Dividend Reinvestment and Stock Purchase Plan (the “DSPP”) pursuant to which stockholders and interested investors could purchase shares of the Company’s Common Stock as well as units of the Company’s securities directly from the Company. The terms of the DSPP are described in the Prospectus Supplement originally filed on March 31, 2014 (the “Original Prospectus Supplement”) with the Securities and Exchange Commission (“SEC”) under the Company’s effective registration Statement on Form S-3, as thereafter amended.

On February 23, 2017, the Company filed a Form S-3 with the SEC (Registration No. 333-216191) as a replacement for the Form S-3 (Registration No. 333-193336), in which the three (3) year period was ending March 31, 2017, along with the base Prospectus and Supplemental Prospectus. The Form S-3, as amended, and the new base Prospectus became effective on March 10, 2017, along with the Prospectus Supplement that was filed and became effective on March 10, 2017. The Prospectus Supplement under Registration No. 333-216191 describes the terms of the DSPP and replaces the prior Prospectus Supplement, as amended, under the prior Registration No. 333-193336.

Please see Footnote 3E (“Dividend Reinvestment and Stock Purchase Plan (“DSPP”)), which is a part of this Form 10-Q filing, for details about specific unit programs, dates, and filings during the years 2015 through 2019.

For the three and six months ended June 30, 2019, approximately $3,108,000 and $5,636,000 was raised under the DSPP program. Of this amount, approximately $2,000 was received through the exercise of warrants.

The Warrants transactions since January 1, 2019 are shown in the table below:

Warrants	Exercise Price		Warrant Termination Date	Beg Balance, 12/31/18		Warrants Issued		Warrants Exercised			Warrants Expired/ Cancelled		Outstanding Balance, 6/30/19
ZNWAA	$	2.00	1/31/2021		1,498,804		0		0			0		1,498,804
ZNWAD	$	1.00	5/2/2021		243,853		0					0		243,853
ZNWAE	$	1.00	5/2/2021		2,144,510		0		(40	)		0		2,144,470
ZNWAF	$	1.00	8/14/2021		359,610		0		0			0		359,610
ZNWAG	$	1.00	1/8/2021		240,578		0		0			0		240,578
ZNWAH	$	5.00	4/19/2021		372,400		0		0			0		372,400
ZNWAI	$	3.00	6/29/2021		640,735		0		(5	)		0		640,730
ZNWAJ	$	1.00	10/29/2021		546,050		0		(25	)				546,025
ZNWAK	$	0.01	2/25/2021		0		673,600		(199,500	)		0		474,100
Outstanding warrants					6,046,540		673,600		(199,570	)		0		6,520,570

According to the warrant table, the Company could potentially raise up to approximately $10,321,000 if all outstanding warrants were exercised by its holders.

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10% Senior Convertible Notes due May 2, 2021

Please see Footnote 5 (“Senior Convertible Bonds”), which is a part of this Form 10-Q filing, for a description and details about the Bonds.

2018 Subscription Rights Offering

Please see Footnote 3G (“Subscription Rights Offering”), which is a part of this Form 10-Q filing, for a description of and details about the Subscription Rights Offering.

Principal Components of our Cost Structure

Our operating and other expenses primarily consist of the following:

● Impairment of Unproved Oil and Gas Properties: Impairment expense is recognized if a determination is made that a well will not be able to be commercially productive. The amounts include amounts paid in respect of the drilling operations as well as geological and geophysical costs and various amounts that were paid to Israeli regulatory authorities.

● General and Administrative Expenses: Overhead, including payroll and benefits for our corporate staff, costs of managing our exploratory operations, audit and other professional fees, and legal compliance is included in general and administrative expenses. General and administrative expenses also include non-cash stock-based compensation expense, investor relations related expenses, lease and insurance and related expenses.

● Depreciation, Depletion, Amortization and Accretion: The systematic expensing of the capital costs incurred to explore for natural gas and oil represents a principal component of our cost structure. As a full cost company, we capitalize all costs associated with our exploration, and apportion these costs to each unit of production, if any, through depreciation, depletion and amortization expense. As we have yet to have production, the costs of abandoned wells are written off immediately versus being included in this amortization pool.

Going Concern Basis

Since we have limited capital resources, no revenue to date and a loss from operations, our financial statements have been prepared on a going concern basis, which contemplates realization of assets and liquidation of liabilities in the ordinary course of business. The appropriateness of using the going concern basis is dependent upon our ability to obtain additional financing or equity capital and, ultimately, to achieve profitable operations. Therefore, there is substantial doubt about our ability to continue as a going concern. The financial statements do not include any adjustments that might result from the outcome of this uncertainty.

Critical Accounting Policies

Management’s discussion and analysis of financial condition and results of operations is based upon our financial statements, which have been prepared in accordance with accounting principles generally accepted in the United States of America. The preparation of these financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expense during the reporting period.

We have identified the accounting principles which we believe are most critical to the reported financial status by considering accounting policies that involve the most complex of subjective decisions or assessment.

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Impairment of Oil and Gas Properties

We follow the full-cost method of accounting for oil and gas properties. Accordingly, all costs associated with acquisition, exploration and development of oil and gas reserves, including directly related overhead costs, are capitalized.

All capitalized costs of oil and gas properties, including the estimated future costs to develop proved reserves, are amortized on the unit-of-production method using estimates of proved reserves. Investments in unproved properties and major development projects are not amortized until proved reserves associated with the projects can be determined or until impairment occurs. If the results of an assessment indicate that the properties are impaired, the amount of the impairment is included in income from continuing operations before income taxes, and the adjusted carrying amount of the unproved properties is amortized on the unit-of-production method.

Our oil and gas properties represent an investment in unproved properties. These costs are excluded from the amortized cost pool until proved reserves are found or until it is determined that the costs are impaired. All costs excluded are reviewed at least quarterly to determine if impairment has occurred. The amount of any impairment is charged to expense since a reserve base has not yet been established. A further impairment requiring a charge to expense may be indicated through evaluation of drilling results, relinquishing drilling rights or other information.

Abandonment of properties is accounted for as adjustments to capitalized costs. The net capitalized costs are subject to a “ceiling test” which limits such costs to the aggregate of the estimated present value of future net revenues from proved reserves discounted at ten percent based on current economic and operating conditions, plus the lower of cost or fair market value of unproved properties. The recoverability of amounts capitalized for oil and gas properties is dependent upon the identification of economically recoverable reserves, together with obtaining the necessary financing to exploit such reserves and the achievement of profitable operations.

During the fourth quarter of 2018, the Company’s testing protocol was concluded at the MJ #1 well. The test results confirmed that the MJ #1 well did not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000 (see Note 4). During the three and six months ended June 30, 2019, the Company recorded post-impairment charges of approximately $65,000 and $228,000, respectively.

The Company did not record any non-cash impairment during the three and six months ended June 30, 2018.

The total net book value of our unproved oil and gas properties under the full cost method was $7,121,000 at June 30, 2019.

Asset Retirement Obligation

We record a liability for asset retirement obligation at fair value in the period in which it is incurred and a corresponding increase in the carrying amount of the related long-lived assets.

Fair Value Considerations

We follow ASC 820, “Fair Value Measurements and Disclosures,” as amended by Financial Accounting Standards Board (FASB) Financial Staff Position (FSP) No. 157 and related guidance. Those provisions relate to the Company’s financial assets and liabilities carried at fair value and the fair value disclosures related to financial assets and liabilities. ASC 820 defines fair value, expands related disclosure requirements, and specifies a hierarchy of valuation techniques based on the nature of the inputs used to develop the fair value measures. Fair value is defined as the price that would be received from the sale of an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, assuming the transaction occurs in the principal or most advantageous market for that asset or liability.

There are three levels of inputs to fair value measurements - Level 1, meaning the use of quoted prices for identical instruments in active markets; Level 2, meaning the use of quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or are directly or indirectly observable; and Level 3, meaning the use of unobservable inputs. We use Level 1 inputs for fair value measurements whenever there is an active market, with actual quotes, market prices, and observable inputs on the measurement date. We use Level 2 inputs for fair value measurements whenever there are quoted prices for similar securities in an active market or quoted prices for identical securities in an inactive market. We use observable market data whenever available. We use Level 3 inputs in the Binomial Model used for the valuation of the derivative liability.

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Derivative Liabilities

In accordance with ASC 815-40-25 and ASC 815-10-15 Derivatives and Hedging and ASC 480-10-25 Liabilities-Distinguishing Liabilities from Equity, the embedded derivatives associated with the Convertible Bonds are accounted for as liabilities during the term of the related Convertible Bonds.

RESULTS OF OPERATIONS

	For the three months ended June 30,						For the six months ended June 30,
	2019			2018			2019			2018
	(US $ in thousands)						(US $ in thousands)
Operating costs and expenses:
General and administrative expenses		996			1,336			1,922			3,295
Impairment of unproved oil and gas properties		65			-			228			-
Other		554			680			1,109			1,233
Subtotal Operating costs and expenses		1,615			2,016			3,259			4,528
(Gain) loss on derivative liability		(460	)		(968	)		(82	)		2,566
Other expense (income), net		158			193			306			398
Net loss		1,313			1,241			3,483			7,492

Revenue. We currently have no revenue generating operations.

Operating costs and expenses. Operating costs and expenses for the three and six months ended June 30, 2019 were $1,615,000 and $3,259,000, respectively, compared to $2,016,000 and $4,528,000 for the three and six months ended June 30, 2018. The decrease in operating costs and expenses during each of the three and six months ended June 30, 2019 compared to the corresponding periods in 2018 is primarily attributable to a decrease in general and administrative expenses and other expenses, and slightly offset by recognition of an impairment charge during the three and six months ended June 30, 2019.

General and administrative expenses. General and administrative expenses for the three and six months ended June 30, 2019 were $996,000 and $1,922,000, respectively, compared to $1,336,000 and $3,295,000 for the three and six months ended June 30, 2018. The decrease in general and administrative expenses during each of the three and six months ended June 30, 2019 compared to the corresponding periods in 2018 is primarily attributable to lower non-cash expenses recognized and recorded in connection with stock option grants during 2019 compared to the corresponding periods in 2018.

Other expenses. Other expenses during the three and six months ended June 30, 2019 were $554,000 and $1,109,000, respectively, compared to $680,000 and $1,233,000 for the three and six months ended June 30, 2018. Other general and administrative expenses are comprised of non-compensation and non-professional expenses incurred. The decrease in other general and administrative expenses during the three and six months ended June 30, 2019 compared to the corresponding periods in 2018 is primarily attributable to decreased marketing expenses associated with investor relations activities.

(Gain), loss on derivative liability. (Gain), loss on derivative liability during the three and six months ended June 30, 2019 were ($460,000) and ($82,000), compared to ($968,000) and $2,566,000 for the three and six months ended June 30, 2018. An embedded derivative is contained within the valuation of Zion’s $100 convertible bond offering which closed in March 2016. The (gain) on derivative liability during the three and six months ended June 30, 2019 compared to the (gain), loss on derivative liability during the three and six months ended June 30, 2018 is primarily due to the change in the share price of our common stock that occurred during the three and six months ended June 30, 2019.

Other expense, net. Other expense, net for the three and six months ended June 30, 2019 were $158,000 and $306,000, compared to $193,000 and $398,000 for the three and six months ended June 30, 2018. The decrease in other expense, net during the three and six months ended June 30, 2019 compared to the corresponding period in 2018 is primarily attributable to exchange rate differences associated with the fluctuating exchange rates of the New Israeli Shekels (“NIS”) with the U.S. Dollar (“USD”) and to financial expenses related to the Company’s convertible bonds.

Net Loss. Net loss for the three and six months ended June 30, 2019 were $1,313,000 and $3,483,000 compared to $1,241,000 and $7,492,000 for the three and six months ended June 30, 2018. The decrease in net loss for 2019 is primarily attributable to the approximately $2.6 million expense recognized in the six months ended June 30, 2018 compared to a net gain of $82,000 for the six months ended June 30, 2019.

38

Liquidity and Capital Resources

Liquidity is a measure of a company’s ability to meet potential cash requirements. As discussed above, we have historically met our capital requirements through the issuance of common stock as well as proceeds from the exercise of warrants and options to purchase common shares.

Our ability to continue as a going concern is dependent upon obtaining the necessary financing to complete further exploration and development activities and generate profitable operations from our oil and natural gas interests in the future. Our current operations are dependent upon the adequacy of our current assets to meet our current expenditure requirements and the accuracy of management’s estimates of those requirements. Should those estimates be materially incorrect, our ability to continue as a going concern will be impaired. Our financial statements for the six months ended June 30, 2019 have been prepared on a going concern basis, which contemplates the realization of assets and the settlement of liabilities and commitments in the normal course of business. We have incurred a history of operating losses and negative cash flows from operations. Therefore, there is substantial doubt about our ability to continue as a going concern.

As of June 30, 2019, we had approximately $3,077,000 in cash and cash equivalents compared to $2,791,000 at December 31, 2018, which does not include any restricted funds. Our working capital (current assets minus current liabilities) was $2,693,000 at June 30, 2019 and $537,000 at December 31, 2018. The derivative liability at June 30, 2019 was $263,000 and $345,000 at December 31, 2018, and this non-cash liability negatively impacts the working capital figure. Our working capital balances, exclusive of the non-cash derivative liability amounts, were $2,956,000 at June 30, 2019 and $882,000 at December 31, 2018.

As of June 30, 2019, we provided bank guarantees to various governmental bodies (approximately $1,010,000) and others (approximately $85,000) in respect of our drilling operation in the aggregate amount of approximately $1,095,000. The (cash) funds backing these guarantees and additional amounts added to support currency fluctuations as required by the bank are held in restricted interest-bearing accounts and are reported on the Company’s balance sheets as fixed short-term bank deposits – restricted.

During the six months ended June 30, 2019, cash used in operating activities totaled $2,416,000. Cash provided by financing activities during the six months ended June 30, 2019 was $5,631 ,000 and is primarily attributable to proceeds received from the DSPP. Net cash used in investing activities, primarily for preparatory work for the 3-D seismic shoot in the MJL, and other assets was $3,160,000 for the six months ended June 30, 2019.

We expect to incur additional significant expenditures to further our exploration and development programs. While we raised approximately $5,600,000 during the six months ended June 30, 2019, we will need to raise additional funds in order to acquire, interpret, and analyze new 3-D seismic date in our license area. Additionally, we estimate that, when we are not actively drilling a well, our expenditures are approximately $500,000 per month excluding exploratory operational activities. However, when we are actively drilling a well, we estimate an additional minimum expenditure of approximately $2,500,000 per month. Zion expects that during a period of active seismic data acquisition the expenditures to be approximately $1,500,000 to $2,500,000. The above estimates are subject to change. Management believes that our existing cash balance, coupled with anticipated proceeds under the DSPP, will be sufficient to finance our plan of operations through September 2019. In addition, reference is also made to the legal proceedings referred to in Item 1 of this report relating to lawsuits filed against us following the disclosure of the SEC investigation. While we paid an advanced deposit in the amount of $500,000, any unforeseen or unexpected outlays in this regard may adversely affect our available funds or additional amounts that we may need to raise.

No assurance can be provided that we will be able to raise the needed operating capital on commercially acceptable terms or at all.

39

Even if we raise the needed funds, there are factors that can nevertheless adversely impact our ability to fund our operating needs, including (without limitation), unexpected or unforeseen cost overruns in planned non-drilling exploratory work (e.g., seismic acquisition costs, permitting and surface damages and importation of equipment into Israel, etc.) in existing license areas, the costs associated with extended delays in undertaking the required exploratory work, and plugging and abandonment activities which is typical of what we have experienced in the past.

Reference is made to the discussion above under Capital Resources Highlights for information relating to working capital that we raised through June 30, 2019. Additionally, reference is made to Footnote 9 (Subsequent Events) with respect to an additional estimated amount of $379,000 raised during July 2019.

Off-Balance Sheet Arrangements

We do not currently use any off-balance sheet arrangements to enhance our liquidity or capital resource position, or for any other purpose.

Recently Issued Accounting Pronouncements

The Company does not believe that the adoption of any recently issued accounting pronouncements in 2019 had a significant impact on our financial position, results of operations, or cash flow.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market risk is a broad term for the risk of economic loss due to adverse changes in the fair value of a financial instrument. These changes may be the result of various factors, including interest rates, foreign exchange rates, commodity prices and/or equity prices. In the normal course of doing business, we are exposed to the risks associated with foreign currency exchange rates and changes in interest rates.

Foreign Currency Exchange Rate Risks. A portion of our expenses, primarily labor expenses and certain supplier contracts, are denominated in New Israeli Shekels (“NIS”). As a result, we have significant exposure to the risk of fluctuating exchange rates with the U.S. Dollar (“USD”), our primary reporting currency. During the period January 1, 2019 through June 30, 2019, the USD has fluctuated by approximately 4.9% against the NIS (the USD has weakened relative to the NIS). By contrast, during the period January 1, 2018 through December 31, 2018, the USD fluctuated by approximately 8.1% against the NIS (the USD strengthened relative to the NIS). Continued weakening of the US dollar against the NIS will result in higher operating costs from NIS denominated expenses. To date, we have not hedged any of our currency exchange rate risks, but we may do so in the future.

Interest Rate Risk. Our exposure to market risk relates to our cash and investments. We maintain an investment portfolio of short-term bank deposits and money market funds. The securities in our investment portfolio are not leveraged, and are, due to their very short-term nature, subject to minimal interest rate risk. We currently do not hedge interest rate exposure. Because of the short-term maturities of our investments, we do not believe that a change in market interest rates would have a significant negative impact on the value of our investment portfolio except for reduced income in a low interest rate environment. At June 30, 2019, we had cash, cash equivalents and short-term bank deposits, inclusive of restricted cash, of approximately $4,180,000. The weighted average annual interest rate related to our cash and cash equivalents for the six months ended June 30, 2019 was approximately 0.13%.

The primary objective of our investment activities is to preserve principal while at the same time maximizing yields without significantly increasing risk. To achieve this objective, we invest our excess cash in short-term bank deposits and money market funds that may invest in high quality debt instruments.

ITEM 4. CONTROLS AND PROCEDURES

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in the reports that we file or submit under the Securities Exchange Act of 1934, is recorded, processed, summarized and reported within the time period specified in the SEC’s rules and forms. As of June 30, 2019, our chief executive officer and our chief financial officer conducted an evaluation of the effectiveness of our disclosure controls and procedures. Based on this evaluation, our chief executive officer and our chief financial officer concluded that our disclosure controls and procedures were effective as of June 30, 2019.

Changes in Internal Control over Financial Reporting

There were no changes in our internal control over financial reporting (as such term is defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) during the quarter ended June 30, 2019 that have materially affected or are reasonably likely to materially affect our internal control over financial reporting.

40

PART II—OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

Securities and Exchange Commission (“SEC”) Investigation

As previously disclosed by the Company, on June 21, 2018, Zion received a subpoena to produce documents from the Fort Worth office of the SEC informing the Company of the existence of a non-public, fact-finding inquiry into the Company. Prior to the receipt of the subpoena on June 21, 2018, Zion had no previous communication with the SEC on this issue and was unaware of this investigation. The SEC stated that “the investigation and the subpoena do not mean that we have concluded that [Zion] or anyone else has violated the law.” To date, Zion has furnished all required documents to the SEC and will continue to fully cooperate with the investigation.

The Company cannot predict when this matter will be resolved or what further action, if any, the SEC may take in connection with it.

Litigation

Following the commencement of the SEC investigation, on August 9, 2018, a putative class action (the “class action”) Complaint was filed against Zion, Victor G. Carrillo, the Company’s Chief Executive Officer at such time, and Michael B. Croswell Jr., the Company’s Chief Financial Officer (collectively, the “Defendants”) in the U.S. District Court for the Northern District of Texas. On November 16, 2018, the Court entered an Order in the class action appointing lead plaintiffs and approving lead counsel and on January 22, 2019, an Amended Complaint was filed. On February 1, 2019, a Corrected Amended Class Action Complaint was filed. The suit alleges violations of Section 10(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Rule 10b-5 promulgated thereunder by the SEC and Section 11 of the Securities Act of 1933 (the “Securities Act”) against all defendants and alleges violations of Section 20(a) of the Exchange Act and Section 15 of the Securities Act against the individual defendants. The alleged class period is from February 13, 2018 through November 20, 2018. On March 13, 2019, a Motion to Dismiss Plaintiffs’ Corrected Amended Complaint was filed on behalf of Zion, Victor Carrillo and Michael B. Croswell, Jr., pleading numerous grounds in support of their Motion to Dismiss. On April 29, 2019 Plaintiffs filed a Response to Defendants’ Motion to Dismiss, and one May 29, 2019 Defendants filed a Reply to Plaintiffs’ Response.

 By Verified Consolidated Stockholder Derivative Complaint filed on March 4, 2019, three (3) stockholder derivative lawsuits previously filed in federal district court in Delaware on September 10, 2018, November 1, 2018, and November 21, 2018 were consolidated into one lawsuit filed derivatively and purportedly on behalf of the Company against Victor G. Carrillo, Michael B. Croswell, Jr., John M. Brown, Dustin L. Guinn, Forest A. Garb, Kent S. Siegel, Paul Oroian, William H. Avery, the Estate of Yehezkel Druckman, Lee Russell, Justin W. Furnace, Gene Scammahorn, Ralph F. DeVore, and Martin M. van Brauman. The suit alleges breach of fiduciary duty, unjust enrichment, violations of Section 14(a) of the Exchange Act and conspiracy to “facilitate and disguise” other alleged wrongdoings. The “Relevant Period” of alleged wrongdoing spans from February 13, 2018 and continues through the present. The suit seeks unspecified damages to be awarded to the Company, orders directing the Company and individual defendants to make certain corporate governance reforms, restitution, and fees and costs. On April 18, 2019, a Motion to Dismiss Plaintiffs’ Complaint was filed on behalf of all defendants pleading numerous grounds in support of their Motion to Dismiss. On June 3, 2019 Plaintiffs filed a Response to Defendants’ Motion to Dismiss, and one July 3, 2019 Defendants filed a Reply to Plaintiffs’ Response.

On September 25, 2018, another lawsuit was filed in the 68th district court, Dallas County, Texas derivatively and purportedly on behalf of the Company against John M. Brown, Forrest A. Garb, Kent S. Siegel, Michael B. Croswell, Jr., Dustin L. Guinn, Victor G. Carrillo, Paul Oroian, William H. Avery, Justin W. Furnace, Gene Scammahorn, Martin M. van Brauman, and Lee R. Russell and the Company as a nominal defendant. This suit alleges claims for breaches of fiduciary duty and unjust enrichment against the individual defendants in connection with certain public statements made by the Company from March 12, 2018 to May 30, 2018. On March 29, 2019, this lawsuit was voluntarily dismissed by Plaintiff without prejudice to its subsequent refiling.

On October 29, 2018, Zion received a shareholder request to inspect books and records pursuant to Section 220 of the Delaware General Corporation Law for the purpose of investigating potential corporate mismanagement and breaches of fiduciary duty in connection with public statements made by the Company from March 12, 2018 to May 30, 2018. The Company responded to this request.

The Company disputes the above claims and has made an advanced deposit of $500,000 to defense counsel for the cost of defending the litigation. The Company carries insurance that is applicable to these claims. Because of the uncertainties of litigation, it is not feasible to predict or determine the outcome of these matters, to guarantee that there will be no liability, or to reasonably estimate any loss in excess of its coverage. However, the Company intends to pursue a vigorous defense to the claims.

From time to time, the Company may also be subject to routine litigation, claims or disputes in the ordinary course of business. The Company defends itself vigorously in all such matters. However, we cannot predict the outcome or effect of any of the litigation or any other pending litigation or claims.

ITEM 1A. RISK FACTORS 

During the quarter ended June 30, 2019, there were no material changes to the risk factors previously reported in our Annual Report on Form 10-K for the year ended December 31, 2018.

41

ITEM 2. UNREGISTERED SALES OF SECURITIES AND USE OF PROCEEDS

None.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

None.

ITEM 5. OTHER INFORMATION:

None.

ITEM 6. EXHIBITS

Exhibit Index:

31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 under the Exchange Act
31.2	Certification of the Principal Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 under the Exchange Act
32.1	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished only)
32.2	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished only)
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema
101.CAL	XBRL Taxonomy Extension Calculation Linkbase
101.DEF	XBRL Taxonomy Extension Definition Linkbase
101.LAB	XBRL Taxonomy Extension Label Linkbase
101.PRE	XBRL Taxonomy Extension Presentation Linkbase

42

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

ZION OIL & GAS, INC.
(Registrant)
By:	/s/ John M. Brown	By:	/s/ Michael B. Croswell Jr.
	John M. Brown		Michael B. Croswell Jr.
	Chief Executive Officer		Chief Financial Officer
	(Principal Executive Officer)		(Principal Financial and Accounting Officer)
Date:	August 7, 2019	Date:	August 7, 2019

43

EX-31.1

EXHIBIT 31.1

 CERTIFICATION PURSUANT TO RULE 13a-14(a)/15d-14(a)

I, John M. Brown, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Zion Oil & Gas, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: 

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): 

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 7, 2019

/s/ John M. Brown

John M. Brown, Chief Executive Officer

(Principal Executive Officer)

EX-31.2

EXHIBIT 31.2

CERTIFICATION PURSUANT TO RULE 13a-14(a)/15d-14(a)

I, Michael B. Croswell Jr, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Zion Oil & Gas, Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f))for the registrant and have: 

a. Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b. Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c. Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d. Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions): 

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the issuer’s ability to record, process, summarize and report financial information; and

b. Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: August 7, 2019

/s/ Michael. B. Croswell Jr

Michael B. Croswell Jr, Chief Financial Officer

(Principal Financial and Accounting Officer) 

EX-32.1

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Zion Oil and Gas, Inc. (the “Company”) on Form 10-Q for the quarter ended June 30, 2019 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, John M. Brown, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods presented in the Report.

/s/ John M. Brown

John M. Brown

Chief Executive Officer

(Principal Executive Officer)

August 7, 2019

This certification accompanies this Report on Form 10-K pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by such Act, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent that the Company specifically incorporates it by reference.

EX-32.2

EXHIBIT 32.2

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Zion Oil and Gas, Inc. (the “Company”) on Form 10-Q for the quarter ended June 30, 2019 (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Michael B. Croswell Jr., Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge:

(1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods presented in the Report.

/s/ Michael B. Croswell Jr

Michael B. Croswell Jr.

Chief Financial Officer

(Principal Financial and Accounting Officer)

August 7, 2019

This certification accompanies this Report on Form 10-K pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and shall not, except to the extent required by such Act, be deemed filed by the Company for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent that the Company specifically incorporates it by reference.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 05, 2019
Document and Entity Information [Abstract]
Entity Registrant Name	ZION OIL & GAS INC
Entity Central Index Key	0001131312
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Type	10-Q
Document Period End Date	Jun. 30, 2019
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2019
Entity Current reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	true
Entity shell Company	false
Entity Emerging Growth Company	false
Entity Ex Transition Period	false
Entity Common Stock Shares Outstanding		79,430,201
Entity File Number	001-33228
Entity Interactive Data Current	Yes
Entity Incorporation State Country Code	DE

XML

Condensed Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 3,077	$ 2,791
Fixed short term bank deposits - restricted	1,103	1,325
Prepaid expenses and other	323	461
Other deposits	10	280
Governmental receivables	19	361
Other receivables	125	153
Total current assets	4,657	5,371
Unproved oil and gas properties, full cost method (see Note 4)	7,121	6,714
Property and equipment at cost
Net of accumulated depreciation of $481 and $455	134	156
Right of Use Lease Assets (see Note 7)	685
Other assets
Fixed short term bank deposits - restricted		9
Assets held for severance benefits	306	271
Total other assets	306	280
Total assets	12,903	12,521
Current liabilities
Accounts payable	305	2,811
Lease obligation - current (see Note 7)	216
Asset retirement obligation	691	720
Derivative liability (see Note 6)	263	345
Accrued liabilities	489	958
Total current liabilities	1,964	4,834
Long-term liabilities
10% Senior convertible bonds, net of unamortized deferred financing cost of $50 and $63 and unamortized debt discount of $806 and $993 at June 30, 2019 and December 31, 2018 respectively (see Note 5)	2,398	2,211
Lease obligation - non-current (see Note 7)	516
Obligation under capital lease, net of current maturities of $10	24	30
Provision for severance pay	349	317
Total long-term liabilities	3,287	2,558
Total liabilities	5,251	7,392
Commitments and contingencies (see Note 8)
Stockholders' equity
Common stock, par value $.01; Authorized: 200,000,000 shares at June 30, 2019: Issued and outstanding: 78,371,119 and 66,405,180 shares at June 30, 2019 and December 31, 2018 respectively	784	664
Additional paid-in capital	209,466	203,580
Accumulated deficit	(202,598)	(199,115)
Total stockholders' equity	7,652	5,129
Total liabilities and stockholders' equity	$ 12,903	$ 12,521

XML

Condensed Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Property and equipment, accumulated depreciation	$ 481	$ 455
Unamortized deferred financing cost, net	50	63
Unamortized debt discount	806	993
Obligation under capital lease of current maturities	$ 10	$ 10
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized	200,000,000	200,000,000
Common stock, issued	78,371,119	66,405,180
Common stock, outstanding	78,371,119	66,405,180

XML

Condensed Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
General and administrative	$ 996	$ 1,336	$ 1,922	$ 3,295
Impairment of unproved oil and gas properties	65		228
Other	554	680	1,109	1,233
Loss from operations	(1,615)	(2,016)	(3,259)	(4,528)
Other income (expense), net
Gain, (loss) on derivative liability	460	968	82	(2,566)
Foreign exchange loss	(6)	(69)		(101)
Financial expenses, net	(152)	(124)	(306)	(297)
Loss before income taxes	(1,313)	(1,241)	(3,483)	(7,492)
Income taxes
Net loss	$ (1,313)	$ (1,241)	$ (3,483)	$ (7,492)
Net loss per share of common stock
Basic and diluted (in US$)	$ (0.02)	$ (0.02)	$ (0.05)	$ (0.13)
Weighted-average shares outstanding
Basic and diluted (in thousands)	74,126	59,346	72,073	58,499

XML

Condensed Statement of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock		Additional paid-in Capital	Accumulated deficit	Total
Beginning Balances at Dec. 31, 2017	$ 559		$ 184,485	$ (160,604)	$ 24,440
Beginning Balances (in shares) at Dec. 31, 2017	55,888
Funds received from RO	$ 7		3,074		3,081
Funds received from RO (in shares)	656
Funds received from sale of DSPP units and shares	$ 25		5,928		5,953
Funds received from sale of DSPP units and shares (in shares)	2,490
Value of bonds converted to shares		[1]	168		168
Value of bonds converted to shares (in shares)	37
Bonds interest paid in shares	$ 1		330		331
Bonds interest paid in shares (in shares)	71
Funds received from option exercises	$ 1		17		18
Funds received from option exercises (in shares)	138
Value of options granted to employees, directors and others as non-cash compensation			1,581		1,581
Net loss				(7,492)	(7,492)
Ending Balances at Jun. 30, 2018	$ 593		195,583	(168,096)	28,080
Ending Balances (in shares) at Jun. 30, 2018	59,280
Beginning Balances at Mar. 31, 2018	$ 573		189,699	(166,855)	23,417
Beginning Balances (in shares) at Mar. 31, 2018	57,345
Funds received from RO	$ 7		3,074		3,081
Funds received from RO (in shares)	656
Funds received from sale of DSPP units and shares	$ 11		2,107		2,118
Funds received from sale of DSPP units and shares (in shares)	1,070
Value of bonds converted to shares		[1]	20		20
Value of bonds converted to shares (in shares)	5
Bonds interest paid in shares	$ 1		330		331
Bonds interest paid in shares (in shares)	71
Funds received from option exercises	$ 1		17		18
Funds received from option exercises (in shares)	133
Value of options granted to employees, directors and others as non-cash compensation			336		336
Net loss				(1,241)	(1,241)
Ending Balances at Jun. 30, 2018	$ 593		195,583	(168,096)	28,080
Ending Balances (in shares) at Jun. 30, 2018	59,280
Beginning Balances at Dec. 31, 2018	$ 664		203,580	(199,115)	5,129
Beginning Balances (in shares) at Dec. 31, 2018	66,405
Funds received from sale of DSPP units and shares	$ 115		5,521		5,636
Funds received from sale of DSPP units and shares (in shares)	11,486
Value of bonds converted to shares		[1]	2		2
Value of bonds converted to shares (in shares)	5
Bonds interest paid in shares	$ 4		323		327
Bonds interest paid in shares (in shares)	422
Funds received from option exercises	$ 1				1
Funds received from option exercises (in shares)	53
Value of options granted to employees, directors and others as non-cash compensation			40		40
Net loss				(3,483)	(3,483)
Ending Balances at Jun. 30, 2019	$ 784		209,466	(202,598)	7,652
Ending Balances (in shares) at Jun. 30, 2019	78,371
Beginning Balances at Mar. 31, 2019	$ 711		206,077	(201,285)	5,503
Beginning Balances (in shares) at Mar. 31, 2019	71,066
Funds received from sale of DSPP units and shares	$ 69		3,039		3,108
Funds received from sale of DSPP units and shares (in shares)	6,878
Value of bonds converted to shares		[1]	2		2
Value of bonds converted to shares (in shares)	5
Bonds interest paid in shares	$ 4		323		327
Bonds interest paid in shares (in shares)	422
Value of options granted to employees, directors and others as non-cash compensation			25		25
Net loss				(1,313)	(1,313)
Ending Balances at Jun. 30, 2019	$ 784		$ 209,466	$ (202,598)	$ 7,652
Ending Balances (in shares) at Jun. 30, 2019	78,371

[1] Less than one thousand.

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Condensed Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net loss	$ (3,483)	$ (7,492)
Adjustments required to reconcile net loss to net cash used in operating activities:
Depreciation	25	31
Loss on fixed asset disposal		3
Cost of options issued to employees, directors and others as non-cash compensation	40	1,253
Amortization of debt discount and interest related to convertible bonds	300	258
Change in derivative liability	(82)	2,566
Impairment of unproved oil and gas properties	228
Change in assets and liabilities, net:
Other deposits	270	203
Prepaid expenses and other	138	109
Governmental receivables	342	669
Lease obligation - current	216
Lease obligation - non current	516
Right of Use Lease Assets	(685)
Other receivables	28	(21)
Severance pay	(3)	7
Accounts payable	(79)	(123)
Asset retirement obligation	(29)
Accrued liabilities	(158)	212
Net cash used in operating activities	(2,416)	(2,325)
Cash flows from investing activities
Acquisition of property and equipment	(3)	(10)
Investment in unproved oil and gas properties	(3,157)	(8,403)
Net cash used in investing activities	(3,160)	(8,413)
Cash flows from financing activities
Payments related to capital lease	(6)	(5)
Proceeds from exercise of stock options	1	18
Proceeds from Rights Offering		3,081
Proceeds from issuance of stock and exercise of warrants	5,636	5,953
Net cash provided by financing activities	5,631	9,047
Net (decrease), increase in cash, cash equivalents and restricted cash	55	(1,691)
Cash, cash equivalents and restricted cash - beginning of period	4,125	9,079
Cash, cash equivalents and restricted cash - end of period	4,180	7,388
Non-cash investing and financing activities:
Cost of options capitalized to oil & gas properties		328
Unpaid investments in oil & gas properties	136	3,388
Convertible Bond interest paid in shares	327	331
10% Senior Convertible Bonds converted to shares	2	168
Capitalized convertible bond interest attributed to oil and gas properties	$ 38	$ 156

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Condensed Statements of Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Cash Flows [Abstract]
Cash and cash equivalents	$ 3,077	$ 2,791
Restricted cash included in fixed short-term bank deposits	1,103	1,325
Restricted cash included in fixed long-term bank deposits		9
Cash, cash equivalents and restricted cash	$ 4,180	$ 4,125

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Nature of Operations, Basis of Presentation and Going Concern

6 Months Ended

Jun. 30, 2019

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Operations, Basis of Presentation and Going Concern

Note 1 - Nature of Operations, Basis of Presentation and Going Concern

A. Nature of Operations

Zion Oil & Gas, Inc., a Delaware corporation (“we,” “our,” “Zion” or the “Company”) is an oil and gas exploration company with a history of 19 years of oil & gas exploration in Israel. As of June 30, 2019, the Company has no revenues from its oil and gas operations.

Zion maintains its corporate headquarters in Dallas, Texas. We also have branch offices in Caesarea, Israel and Geneva, Switzerland. The purpose of the Israel branch is to support the Company’s operations in Israel, and the purpose of the Switzerland branch is to operate a foreign treasury center for the Company.

Exploration Rights/Exploration Activities

The Company currently holds one active petroleum exploration license onshore Israel, the Megiddo-Jezreel License, comprising approximately 99,000 acres. The Megiddo Jezreel #1 (“MJ #1”) exploratory well was spud on June 5, 2017 and drilled to a total depth (“TD”) of 5,060 meters (approximately 16,600 feet). Thereafter, the Company successfully cased and cemented the well while awaiting the approval of the testing protocol. The Ministry of Energy approved the well testing protocol on April 29, 2018.

During the fourth quarter of 2018, the Company’s testing protocol was concluded at the MJ #1 well. The test results confirmed that the MJ #1 well did not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000. During the three and six months ended June 30, 2019, the Company recorded a post-impairment charge of approximately $65,000 and $228,000, respectively.

The MJ#1 well provided Zion with information Zion believes is important for potential future exploration efforts within its license area. As with many frontier wildcat wells, the MJ#1 also left several questions unanswered.

While not meant to be an exhaustive list, a summary of what Zion believes to be key information learned in the MJ#1 well is as follows:

1.	The MJ#1 encountered much higher subsurface temperatures at a depth shallower than expected before drilling the well. In our opinion, this is significant because reaching a minimum temperature threshold is necessary for the generation of hydrocarbons from an organic-rich source rock.
2.	The known organic rich (potentially hydrocarbon bearing) Senonian age source rocks that are typically present in this part of Israel were not encountered as expected. Zion expected these source rocks to be encountered at approximately 1,000 meters in the MJ#1 well.
3.	MJ#1 had natural fractures, permeability (the ability of fluid to move through the rock) and porosity (pore space in rock) that allowed the sustained flow of formation fluid in the shallower Jurassic and lower Cretaceous age formations between approximately 1,200 and 1,800 meters. While no hydrocarbons were encountered, Zion believes this fact is nonetheless significant because it provides important information about possible reservoir pressures and the ability of fluids to move within the formation and to the surface.
4.	MJ#1 encountered oil in the Triassic Mohilla formation which Zion believes suggests an active deep petroleum system is in Zion’s license area. There was no natural permeability or porosity in the Triassic Mohilla formation to allow formation fluid to reach the surface naturally during testing, and thus the MJ#1 was not producible or commercial.
5.	The depths and thickness of the formations we encountered varied greatly from pre-drill estimates. This required the MJ#1 to be drilled to a much greater depth than previously expected. Zion has tied these revised formation depths to seismic data which will allow for more accurate interpretation and mapping in the future.

A summary of what Zion believes to be some key questions left to be answered are:

1.	Is the missing shallow Senonian age source rock a result of regional erosion, or is it missing because of a fault that cut the well-bore and could be reasonably expected to be encountered in the vicinity of the MJ#1 drill site? Zion believes this is an important question to answer because if the Senonian source rocks do exist in this area, the high temperatures encountered are sufficient to mature these source rocks and generate oil.
2.	Do the unusually high shallow subsurface temperatures extend regionally beyond the MJ#1 well, which could allow for the generation of hydrocarbons in the Senonian age source rock within our license area?
3.	As a consequence of seismic remapping, where does the MJ#1 well lie relative to the potential traps at the Jurassic and Triassic levels, and was the well location too low on the structures and deeper than the potential hydrocarbons within those traps?

As a result of these unanswered questions and with the information gained drilling the MJ#1 well, as of June 15, 2019, Zion is in process of obtaining landowner permits, along with advance acquisition preparation. We are negotiating with Acoustic Geophysical Services Kft (“AGS”), based in Budapest, Hungary, for all surface and subsurface seismic mapping. A pricing matrix will be provided according to designated source parameters. Source parameters consist of multiple options and pricing according to time and length of source requirements. The final survey area consists of approximately 72 square kilometers surrounding the MJ#1 well.

Zion received a multi-year license extension through December 2, 2020.

Zion’s ability to fully undertake all of these aforementioned activities is subject to its raising the needed capital from its continuing offerings, of which no assurance can be provided.

Megiddo-Jezreel Petroleum License, No. 401 (“MJL”)

The MJL was awarded on December 3, 2013 for a three-year primary term through December 2, 2016, with the possibility of additional one-year extensions up to a maximum of seven years. The MJL lies onshore, south and west of the Sea of Galilee, and the Company continues its exploration focus here as it appears to possess the key geologic ingredients of an active petroleum system with significant exploration potential. In late November 2016, The State of Israel’s Petroleum Commissioner officially approved Zion’s drilling date and license extension request.

On October 30, 2017, the Company sought a multi-year extension to its existing license. After receiving feedback from Israel’s Petroleum Commissioner, the Company submitted a revised extension request on November 9, 2017. On November 20, 2017, Israel’s Petroleum Commissioner officially approved the Company’s multi-year extension request on its Megiddo-Jezreel License No. 401, extending its validity to December 2, 2019 which was subsequently extended to December 2, 2020. Until recently, the Company remained subject to the following updated key license terms:

No.	Activity Description	Execution by:
1	Submit final report on the results of drilling	31 May 2018
2	Submit program for continuation of work under license	30 June 2018

On June 1, 2018, Zion submitted its Megiddo-Jezreel #1 End of Well Report (EOWR) for the Megiddo-Jezreel License No. 401, thus fulfilling its No. 1 Final Report license work plan obligation, shown above. 

On June 14, 2018 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary because we had still not completed testing and evaluating all planned testing zones. On July 1, 2018, Israel’s Petroleum Commissioner granted Zion’s work program report extension to November 1, 2018, as shown below.

No.	Activity Description	Execution by:
1	Submit program for continuation of work under license	1 November 2018

On October 16, 2018 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary because we had still not completed testing and evaluating all planned testing zones. On October 28, 2018, Israel’s Petroleum Commissioner granted Zion’s work program report extension to January 31, 2019, as shown below. 

No.	Activity Description	Execution by:
1	Submit program for continuation of work under license	31 January 2019

On January 31, 2019, Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time was necessary to finalize the work program. On February 3, 2019 Israel’s Petroleum Commissioner granted Zion’s work program report extension to February 28, 2019, as shown below:

Number	Activity Description	Execution by:
3	Submit program for continuation of work under license	28 February 2019

The continuation of work program was timely submitted to Israel’s Petroleum Commissioner and subsequently approved.

On February 24, 2019 and thereafter on February 26, 2019 Zion submitted its proposed 2019 WORK PROGRAM ON the Megiddo-Jezreel License No. 401. 

On February 28, 2019 Israel’s Petroleum Commissioner officially approved the revised and updated Work Program on the Megiddo-Jezreel License No. 401 as shown below:

Number	Activity description	Execution by:
1	Submission of seismic survey plan to the Commissioner and execution of an agreement with a contractor to perform	30 April 2019
2	Commence 3D seismic survey in an area of approximately 50 square kilometers	1 August 2019
3	Transfer of field material configuration and processed material to the Ministry pursuant to Ministry guidelines	15 December 2019
4	Submit interpretation report	20 February 2020

On February 24, 2019 Zion submitted a request to the Commissioner to extend the Megiddo-Jezreel License No. 401 up to December 2, 2020.

On February 28, 2019 the Commissioner approved the extension of the Megiddo-Jezreel License No. 401 up to December 2, 2020.

On April 30, 2019 Zion submitted its Application for Extension of Continued Work Program Due Date on the Megiddo-Jezreel License No. 401. The additional time is necessary for Zion to conduct a 3D survey in an area of approximately 72 square kilometers. This requires, among other things, extensive permitting activities with relevant local landowners, the Israel Land Authority (“ILA”), certain authorities and others throughout the seismic survey area and may not conclude prior to the beginning of the Jewish holidays in October and rainy season. This in turn would result in additional delays, as rain and mud are not conducive to the performance of a seismic survey which includes extensive use of vibrators.

Zion’s proposed new timelines and activity descriptions are shown below:

Number	Activity description	Execution by:
1	Submission of seismic survey plan to the Commissioner and execution of an agreement with a contractor to perform	30 November 2019
2	Commence 3D seismic survey in an area of approximately 72 square kilometers	1 April 2020
3	Transfer of field material configuration and processed material to the Ministry pursuant to Ministry guidelines	15 August 2020
4	Submit interpretation report	15 November, 2020

On May 1, 2019, Israel’s Petroleum Commissioner granted Zion’s work program report extension.

As previously disclosed, the Company required authorization from the ILA, the formal lessor of the land to Kibbutz Sde Eliyahu, on whose property the drilling pad is currently situated, to access and utilize the drill site (“surface use agreement”). The Company received this authorization on July 4, 2016. This was preceded by the Company’s May 15, 2016 signed agreement with the kibbutz. On January 11, 2017, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2017. On December 31, 2017, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2019. On July 1, 2019, an agreement was signed by the Company and the ILA by which the surface usage agreement was extended through December 3, 2020.

Zion’s Former Jordan Valley, Joseph, and Asher-Menashe Licenses

On March 29, 2015, the Energy Ministry approved the Company’s application to merge the southernmost portion of the Jordan Valley License into the Megiddo-Jezreel License. The Company has plugged all of its exploratory wells (in the former Joseph and Asher-Menashe Licenses) but acknowledges its obligation to complete the abandonment of these well sites in accordance with guidance from the Environmental Ministry and local officials.

B. Basis of Presentation

The accompanying unaudited interim condensed financial statements of Zion Oil & Gas, Inc. have been prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) for interim financial information and with Article 8-03 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete financial statements. In the opinion of management, all adjustments, consisting only of normal recurring accruals necessary for a fair statement of financial position, results of operations and cash flows, have been included. The information included in this Quarterly Report on Form 10-Q should be read in conjunction with the financial statements and the accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. The year-end balance sheet data presented for comparative purposes was derived from audited financial statements, but does not include all disclosures required by GAAP. The results of operations for the three and six months ended June 30, 2019 are not necessarily indicative of the operating results for the year ending December 31, 2019 or for any other subsequent interim period.

C. Going Concern 

The Company incurs cash outflows from operations, and all exploration activities and overhead expenses to date have been financed by way of equity or debt financing. The recoverability of the costs incurred to date is uncertain and dependent upon achieving significant commercial production. 

The Company’s ability to continue as a going concern is dependent upon obtaining the necessary financing to undertake further exploration and development activities and ultimately generating profitable operations from its oil and natural gas interests in the future. The Company’s current operations are dependent upon the adequacy of its current assets to meet its current expenditure requirements and the accuracy of management’s estimates of those requirements. Should those estimates be materially incorrect, the Company’s ability to continue as a going concern may be impaired. The financial statements have been prepared on a going concern basis, which contemplates realization of assets and liquidation of liabilities in the ordinary course of business. During the six months ended June 30, 2019, the Company incurred a net loss of approximately $3.5 million and had an accumulated deficit of approximately $203 million. These factors raise substantial doubt about the Company’s ability to continue as a going concern.

To carry out planned operations, the Company must raise additional funds through additional equity and/or debt issuances or through profitable operations. There can be no assurance that this capital or positive operational income will be available to the Company, and if it is not, the Company may be forced to curtail or cease exploration and development activities. The financial statements do not include any adjustments that might result from the outcome of this uncertainty. 

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 2 - Summary of Significant Accounting Policies

A. Net Gain (Loss) per Share Data

Basic and diluted net (loss) gain per share of common stock, par value $0.01 per share (“Common Stock”), is presented in conformity with ASC 260-10 “Earnings Per Share.” Diluted net loss per share is the same as basic net loss per share, as the inclusion of 9,644,820 and 9,265,636 Common Stock equivalents in the six-month period ended June 30, 2019 and 2018 respectively, would be anti-dilutive.

B. Use of Estimates

The preparation of the accompanying financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. Such estimates include the valuation of unproved oil and gas properties, deferred tax assets, asset retirement obligations and legal contingencies. These estimates and assumptions are based on management’s best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. The Company adjusts such estimates and assumptions when facts and circumstances dictate. Illiquid credit markets, volatile equity, foreign currency, and energy markets have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in those estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.

C. Oil and Gas Properties and Impairment

The Company follows the full-cost method of accounting for oil and gas properties. Accordingly, all costs associated with acquisition, exploration and development of oil and gas reserves, including directly related overhead costs, are capitalized.

All capitalized costs of oil and gas properties, including the estimated future costs to develop proved reserves, are amortized on the unit-of-production method using estimates of proved reserves. Investments in unproved properties and major development projects are not amortized until proved reserves associated with the projects can be determined or until impairment occurs. If the results of an assessment indicate that the properties are impaired, the amount of the impairment is included in loss from continuing operations before income taxes, and the adjusted carrying amount of the proved properties is amortized on the unit-of-production method.

The Company’s oil and gas property represents an investment in unproved properties. These costs are excluded from the amortized cost pool until proved reserves are found or until it is determined that the costs are impaired. All costs excluded are reviewed at least quarterly to determine if impairment has occurred. The amount of any impairment is charged to expense since a reserve base has not yet been established. Impairment requiring a charge to expense may be indicated through evaluation of drilling results, relinquishing drilling rights or other information.

During the fourth quarter of 2018, the Company testing protocol was concluded at the Megiddo Jezreel #1 (“MJ #1”) well. The test results confirmed that the MJ #1 well did not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000 (see Note 4). During the three and six months ended June 30, 2019, the Company recorded post-impairment charges of approximately $65,000 and $228,000, respectively.

Currently, the Company has no economically recoverable reserves and no amortization base. The Company’s unproved oil and gas properties consist of capitalized exploration costs of $7,121,000 and $6,714,000 as of June 30, 2019, and December 31, 2018, respectively.

D. Fair Value Measurements

The Company follows Accounting Standards Codification (ASC) 820, “Fair Value Measurements and Disclosures,” as amended by Financial Accounting Standards Board (FASB) Financial Staff Position (FSP) No. 157 and related guidance. Those provisions relate to the Company’s financial assets and liabilities carried at fair value and the fair value disclosures related to financial assets and liabilities. ASC 820 defines fair value, expands related disclosure requirements, and specifies a hierarchy of valuation techniques based on the nature of the inputs used to develop the fair value measures. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, assuming the transaction occurs in the principal or most advantageous market for that asset or liability.

There are three levels of inputs to fair value measurements - Level 1, meaning the use of quoted prices for identical instruments in active markets; Level 2, meaning the use of quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or are directly or indirectly observable; and Level 3, meaning the use of unobservable inputs.

The Company uses Level 1 inputs for its fair value measurements whenever there is an active market, with actual quotes, market prices, and observable inputs on the measurement date. The Company uses Level 2 inputs for fair value measurements whenever there are quoted prices for similar securities in an active market or quoted prices for identical securities in an inactive market. The Company uses Level 3 inputs in the Binomial Model used for the valuation of the derivative liability. 

E. Derivative Liabilities

In accordance with ASC 815-40-25 and ASC 815-10-15 Derivatives and Hedging and ASC 480-10-25 Liabilities-Distinguishing Liabilities from Equity, the embedded derivatives associated with the Convertible Bonds are accounted for as a liability during the term of the related Convertible Bonds (see Note 6).

F. Stock-Based Compensation

ASC 718, “Compensation – Stock Compensation,” prescribes accounting and reporting standards for all share-based payment transactions in which employee and non-employee services are acquired. Transactions include incurring liabilities, or issuing or offering to issue shares, options, and other equity instruments such as employee stock ownership plans and stock appreciation rights. Share-based payments to employees and non-employees, including grants of stock options, are recognized as compensation expense in the financial statements based on their fair values. That expense is recognized over the requisite service period (usually the vesting period).

The Company accounts for stock-based compensation issued to non-employees and consultants in accordance with the provisions of ASC 505-50, “Equity – Based Payments to Non-Employees.” Measurement of share-based payment transactions with non-employees is based on the fair value of whichever is more reliably measurable: (a) the goods or services received; or (b) the equity instruments issued. The fair value of the share-based payment transaction is determined at the earlier of performance commitment date or performance completion date.

G. Related parties

Parties are considered to be related to the Company if the parties, directly or indirectly, through one or more intermediaries, control, are controlled by, or are under common control with the Company. Related parties also include principal owners of the Company, its management, members of the immediate families of principal owners of the Company and its management and other parties with which the Company may deal if one party controls or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests. All transactions with related parties are recorded at fair value of the goods or services exchanged.

H. Recently Adopted Accounting Pronouncements

ASU 2016-02 and ASU 2018-01 – Leases (Topic 842)

In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”) in order to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under previous GAAP. ASU 2016-02 requires that a lessee should recognize a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term on the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (including interim periods within those periods) using a modified retrospective approach and early adoption is permitted. Zion adopted ASU 2016-02 in the first quarter of 2019. Presently, Zion has operating leases for office space in Dallas, Texas and in Caesarea, Israel plus various leases for motor vehicles. These leases have been accounted for under ASU 2016-02 in 2019 by establishing a right-of-use asset and a corresponding current lease liability and non-current lease liability. Zion is not subject to any loan covenants and therefore, the increase in assets and liabilities does not have a material impact on its business.

In January 2018, the FASB issued ASU 2018-01, “Land Easement Practical Expedient for Transition to “Topic 842.”

The amendments in this Update provide an optional transition practical expedient to not evaluate under Topic 842 existing or expired land easements that were not previously accounted for as leases under Topic 840, Leases. An entity that elects this practical expedient should evaluate new or modified land easements under Topic 842 beginning at the date that the entity adopts Topic 842. An entity that does not elect this practical expedient should evaluate all existing or expired land easements in connection with the adoption of the new lease requirements in Topic 842 to assess whether they meet the definition of a lease. The Company does not have any land easements and believes that this ASU 2018-01 has no effect on the Company.

ASU 2016-15 and ASU 2016-08 – Statement of Cash Flows (Topic 230)

In August 2016, the FASB issued AS 2016-15, “Classification of Certain Cash Receipts and Cash Payments”, which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The effective date for ASU 2016-15 is for fiscal years beginning after December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact of adopting ASU 2016-15 on our financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) (“ASU 2016-18”), which requires that restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total cash amounts shown on the statement of cash flows. The effective date for ASU 2016-18 is for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We adopted ASU 2016-18 effective January 1, 2018. The adoption of ASU 2016-18 had no impact on our retained earnings, and no impact to our net income on an ongoing basis. Adoption of the new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash, or restricted cash equivalents. The amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statements of cash flows. The amendments have been applied using a retrospective transition method to each period presented, as required.

ASU 2018-05 – Income Taxes (Topic 740)

In March 2018, the FASB issued ASU 2018-05, “Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118”. This ASU expresses the view of the staff regarding application of Topic 740, Income Taxes, in the reporting period that includes December 22, 2017, the date on which the Tax Cuts and Jobs Act (H.R.1, An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018) was signed into law. The Company is currently evaluating the impact of adopting ASU 2018-05 on our financial statements.  

ASU 2016-09

In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, or ASU No. 2016-09. The areas for simplification in this Update involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. For public entities, the amendments in this Update are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted in any interim or annual period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. Amendments related to the presentation of employee taxes paid on the statement of cash flows when an employer withholds shares to meet the minimum statutory withholding requirement should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term should be applied prospectively. An entity may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. The Company believes that this ASU No. 2016-09 has no impact on our financial statements.

The Company does not believe that the adoption of any recently issued accounting pronouncements in 2019 had a significant impact on our financial position, results of operations, or cash flow, except for ASC Update No. 2015-03—Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. For public business entities, the amendments in this Update are effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. At June 30, 2019 and December 31, 2018, the Company reclassified $50,000 and $63,000, respectively, in deferred offering costs from an asset account and applied it to the outstanding debt balance (see Note 5).

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Stockholders' Equity

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

Stockholders' Equity

Note 3 - Stockholders’ Equity

A. 2011 Equity Incentive Stock Option Plan

During the six months ended June 30, 2019, the Company granted the following options from the 2011 Equity Incentive Plan for employees, directors and consultants, to purchase as non-cash compensation (the exercise of penny stock options is taxable at full market value on the date of exercise):

i. Options to purchase 25,000 shares of Common Stock to one senior officer at an exercise price of $0.01 per share. The options vested upon grant and are exercisable through January 6, 2029. The fair value of the options at the date of grant amounted to approximately $10,000.

ii. Options to purchase 100,000 shares of Common Stock were granted to one senior officer at an exercise price of $0.01 per share. The options are exercisable through May 1, 2029. However, the vesting and exercisability of these options is subject to the following schedule: (a) 50,000 options vest on September 1, 2019 and (b) the remaining 50,000 options vest on January 1, 2020. The fair value of the options at the date of grant amounted to $55,000.

During the six months ended June 30, 2018, the Company granted the following options from the 2011 Equity Incentive Plan for employees, directors and consultants, to purchase as non-cash compensation (the exercise of penny stock options are taxable on the date of exercise):

i.	Options to purchase 330,000 shares of Common Stock to 23 senior officers, staff members and consultants at an exercise price of $.01 per share. The options have vesting schedules of 165,000 shares on June 30, 2018 and 165,000 shares on December 31, 2018. The options are exercisable through January 1, 2028. The fair value of the options at the date of grant amounted to approximately $759,000.
ii.	Options to purchase 110,000 shares of Common Stock to five senior officers at an exercise price of $0.01 per share. The options vested upon grant and are exercisable through January 4, 2028. The fair value of the options at the date of grant amounted to approximately $250,000.
iii.	Options to purchase 55,000 shares of Common Stock to three consultants an exercise price of $0.01 per share. The options vested upon grant. However, the exercisability of these options is according to the following schedule: (a) 27,500 options are exercisable on June 30, 2018 and (b) the remaining 27,500 options are exercisable on June 30, 2019. The fair value of the options at the date of grant amounted to $222,000.
iv.	Options to purchase 14,000 shares of Common Stock to seven staff members at an exercise price of $0.01 per share. The options vested upon grant and are exercisable through April 5, 2028. The fair value of the options at the date of grant amounted to approximately $62,000.

B. 2011 Non-Employee Directors Stock Option Plan

During the six months ended June 30, 2019, the Company did not grant any qualified (market value) options from the 2011 Non-Employee Directors Stock Option Plan to its directors.

During the six months ended June 30, 2018, the Company granted the following qualified (market value) options from the 2011 Non-Employee Directors Stock Option Plan for directors to purchase as non-cash compensation:

i. Options to purchase 400,000 shares of Common Stock to eight board members at an exercise price of $2.31 per share. The options vested upon grant and are exercisable through January 1, 2024. The fair value of the options at the date of grant amounted to approximately $428,000.

C. Stock Options

The stock option transactions since January 1, 2019 are shown in the table below:

	Number of shares			Weighted Average exercise price
				US$
Outstanding, December 31, 2018		4,788,443			1.37
Changes during 2019 to:
Granted to employees, officers, directors and others *		125,000			0.01
Expired/Cancelled/Forfeited		(385,693	)		2.07
Exercised		(52,500	)		0.01
Outstanding, June 30, 2019		4,475,250			1.29
Exercisable, June 30, 2019		4,375,250			1.32

* The receipt of a stock option grant by the grantee recipient is a non-taxable event according to the Internal Revenue Service. The grantee who later chooses to exercise penny stock options must recognize the market value in income in the year of exercise.

The following table summarizes information about stock options outstanding as of June 30, 2019:

Shares underlying outstanding options (non-vested)								Shares underlying outstanding options (fully vested)
Range of exercise price		Number outstanding		Weighted average remaining contractual life (years)		Weighted Average Exercise price		Range of exercise price		Number Outstanding		Weighted average remaining contractual life (years)		Weighted Average Exercise price
US$						US$		US$						US$
	—		—		—		—		0.01		15,000		4.37		0.01
	—		—		—		—		0.01		15,000		4.76		0.01
	—		—		—		—		0.01		5,000		4.95		0.01
	—		—		—		—		0.01		10,000		6.26		0.01
	—		—		—		—		0.01		25,000		6.50		0.01
	—		—		—		—		0.01		305,000		6.93		0.01
	—		—		—		—		0.01		525,000		7.50		0.01
	—		—		—		—		0.01		10,000		7.51		0.01
	—		—		—		—		0.01		60,000		7.79		0.01
	0.01		100,000		9.83		0.01		0.01		40,000		8.25		0.01
	—		—		—		—		0.01		180,000		8.50		0.01
	—		—		—		—		0.01		85,000		8.51		0.01
	—		—		—		—		0.01		45,000		8.66		0.01
	—		—		—		—		0.01		6,000		8.77		0.01
	—		—		—		—		0.01		25,000		9.52		0.01
	—		—		—		—		1.33		25,000		3.83		1.33
	—		—		—		—		1.38		108,000		1.51		1.38
	—		—		—		—		1.38		105,307		5.52		1.38
	—		—		—		—		1.55		400,000		2.93		1.55
	—		—		—		—		1.67		340,000		1.26		1.67
	—		—		—		—		1.67		405,943		5.26		1.67
	—		—		—		—		1.70		218,500		3.48		1.70
	—		—		—		—		1.75		400,000		4.02		1.75
	—		—		—		—		1.78		25,000		5.19		1.78
	—		—		—		—		1.87		25,000		2.59		1.87
	—		—		—		—		1.95		25,000		0.76		1.95
	—		—		—		—		1.96		25,000		0.18		1.96
	—		—		—		—		2.03		25,000		1.84		2.03
	—		—		—		—		2.31		400,000		4.51		2.31
									2.61		471,500		2.43		2.61
	—		—		—		—		4.15		25,000		5.01		4.15
	0.01		100,000				0.01		0.01-4.15		4,375,250				1.32

Granted to employees

The following table sets forth information about the weighted-average fair value of options granted to employees and directors during the year, using the Black Scholes option-pricing model and the weighted-average assumptions used for such grants:

	For the six months ended June 30,
	2019			2018
Weighted-average fair value of underlying stock at grant date	$	0.53		$	2.34
Dividend yields		—			—
Expected volatility		87%-88	%		68%-75	%
Risk-free interest rates		2.31%-2.53	%		2.01%-2.58	%
Expected lives (in years)		5.00-5.34			3.00-5.50
Weighted-average grant date fair value	$	0.52		$	1.73

Granted to non-employees

The following table sets forth information about the weighted-average fair value of options granted to non-employees during the year, using the Black Scholes option-pricing model and the weighted-average assumptions used for such grants:

	For the six months ended June 30,
	2019		2018
Weighted-average fair value of underlying stock at grant date	$	—	$	3.37
Dividend yields		—		—
Expected volatility		—		73%-76	%
Risk-free interest rates		—		2.46%-2.81	%
Expected lives (in years)		—		10.00
Weighted-average grant date fair value	$	—	$	3.36

The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant for periods corresponding with the expected life of the options.

The expected life represents the weighted average period of time that options granted are expected to be outstanding. The expected life of the options granted to employees and directors is calculated based on the Simplified Method as allowed under Staff Accounting Bulletin No. 110 (“SAB 110”), giving consideration to the contractual term of the options and their vesting schedules, as the Company does not have sufficient historical exercise data at this time. The expected life of the option granted to non-employees equals their contractual term. In the case of an extension of the option life, the calculation was made on the basis of the extended life.

D. Compensation Cost for Warrant and Option Issuances

The following table sets forth information about the compensation cost of warrant and option issuances recognized for employees and directors:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	40		1,279

The following table sets forth information about the compensation cost of warrant and option issuances recognized for non-employees:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	—		302

The following table sets forth information about the compensation cost of option issuances recognized for employees and non-employees and capitalized to Unproved Oil & Gas properties:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	—		328

As of June 30, 2019, there was approximately $35,000 of unrecognized compensation cost, related to non-vested stock options granted under the Company’s various stock option plans. The cost is expected to be recognized during the years 2019 and 2020.

E. Dividend Reinvestment and Stock Purchase Plan (“DSPP”)

On March 27, 2014, the Company launched its Dividend Reinvestment and Stock Purchase Plan (the “DSPP”) pursuant to which stockholders and interested investors can purchase shares of the Company’s Common Stock as well as units of the Company’s securities directly from the Company. The terms of the DSPP are described in the Prospectus Supplement originally filed on March 31, 2014 (the “Original Prospectus Supplement”) with the Securities and Exchange Commission (“SEC”) under the Company’s effective registration Statement on Form S-3, as thereafter amended.

On January 13, 2015, the Company amended the Original Prospectus Supplement (“Amendment No. 3”) to provide for a unit option (the “Unit Option”) under the DSPP comprised of one share of Common Stock and three Common Stock purchase warrants with each unit priced at $4.00. Each warrant afforded the participant the opportunity to purchase the Company’s Common Stock at a warrant exercise price of $1.00. Each of the three warrants series has different expiration dates that have been extended.

The warrants became exercisable on May 2, 2016 and, in the case of ZNWAB continued to be exercisable through May 2, 2017 (1 year) and, in the case of ZNWAC continued to be exercisable through May 2, 2018 for ZNWAC (2 years) and May 2, 2019 for ZNWAD (3 years), respectively, at a per share exercise price of $1.00.

As of May 2, 2017, any outstanding ZNWAB warrants expired.

As of May 2, 2018, any outstanding ZNWAC warrants expired.

On December 4, 2018, the Company extended the termination date of the ZNWAD Warrant by one (1) year from the expiration date of May 2, 2019 to May 2, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAD Warrant by one (1) year from the expiration date of May 2, 2020 to May 2, 2021.

On November 1, 2016, the Company launched a unit offering (the “Unit Program”) under the Company’s DSPP pursuant to which participants could purchase units comprised of seven shares of Common Stock and seven Common Stock purchase warrants, at a per unit purchase price of $10. The warrant is referred to as “ZNWAE.”

The ZNWAE warrants became exercisable on May 1, 2017 and continue to be exercisable through May 1, 2020 at a per share exercise price of $1.00.

On May 29, 2019, the Company extended the termination date of the ZNWAE Warrant by one (1) year from the expiration date of May 1, 2020 to May 1, 2021.

The warrant terms provide that if the Company’s Common Stock trades above $5.00 per share at the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company may, in its sole discretion, accelerate the termination of the warrant upon providing 60 days advanced notice to the warrant holders.

On February 23, 2017, the Company filed a Form S-3 with the SEC (Registration No. 333-216191) as a replacement for the Form S-3 (Registration No. 333-193336), for which the three year period ended March 31, 2017, along with the base Prospectus and Supplemental Prospectus. The Form S-3, as amended, and the new base Prospectus became effective on March 10, 2017, along with the Prospectus Supplement that was filed and became effective on March 10, 2017. The Prospectus Supplement under Registration No. 333-216191 describes the terms of the DSPP and replaces the prior Prospectus Supplement, as amended, under the prior Registration No. 333-193336.

On May 22, 2017, the Company launched a new unit offering (the “New Unit Program”). The New Unit Program consisted of a new combination of common stock and warrants, a new time period in which to purchase under the program, and a new unit price, but otherwise the same unit program features, conditions and terms in the Prospectus Supplement applied. The New Unit Program terminated on July 12, 2017. This New Unit Program enabled participants to purchase Units of the Company’s securities where each Unit (priced at $250.00 each) was comprised of (i) the number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company’s Common Stock as reported on the NASDAQ on the unit purchase date and (ii) Common Stock purchase warrants to purchase an additional 25 shares of Common Stock at a warrant exercise price of $1.00 per share. The warrant is referred to as “ZNWAF.”

All ZNWAF warrants became exercisable on August 14, 2017 and continue to be exercisable through August 14, 2020 at a per share exercise price of $1.00.

On May 29, 2019, the Company extended the termination date of the ZNWAF Warrant by one (1) year from the expiration date of August 14, 2020 to August 14, 2021.

The warrant terms provide that if the Company’s Common Stock trades above $5.00 per share as the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company has the sole discretion to accelerate the termination date of the warrant upon providing 60 days advanced notice to the warrant holders.

On October 16, 2017, the Company initiated another Unit Option Program which terminated on December 6, 2017. This Unit Option Program enabled participants to purchase Units of the Company’s securities where each Unit (priced at $250.00 each) was comprised of (i) a certain number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company’s Common Stock as reported on the NASDAQ on the unit purchase date and (ii) Common Stock purchase warrants to purchase an additional 15 shares of Common Stock at a warrant exercise price of $1.00 per share. The warrant is referred to as “ZNWAG.”

The warrants became exercisable on January 8, 2018 and continue to be exercisable through January 8, 2021 at a per share exercise price of $1.00. The warrant terms provide that if the Company’s Common Stock trades above $5.00 per share as the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company has the sole discretion to accelerate the termination date of the warrant upon providing 60 days advanced notice to the warrant holders.

On February 1, 2018, the Company initiated another Unit Option Program which terminated on February 28, 2018. The Unit Option consisted of Units of our securities where each Unit (priced at $250.00 each) was comprised of (i) 50 shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional 50 shares of Common Stock. The investor’s Plan account was credited with the number of shares of the Company’s Common Stock acquired under the Units purchased. Each warrant affords the investor the opportunity to purchase one share of Company Common Stock at a warrant exercise price of $5.00. The warrant is referred to as “ZNWAH.”

The warrants became exercisable on April 2, 2018 and continue to be exercisable through April 2, 2020 at a per share exercise price of $5.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of April 2, 2019 to April 2, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAH Warrant by one (1) year from the expiration date of April 2, 2020 to April 2, 2021.

On August 21, 2018, the Company initiated another Unit Option, and it terminated on September 26, 2018. The Unit Option consisted of Units of the Company’s securities where each Unit (priced at $250.00 each) was comprised of (i) a certain number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company’s publicly traded common stock as reported on the NASDAQ on the Unit Purchase Date and (ii) Common Stock purchase warrants to purchase an additional twenty-five (25) shares of Common Stock. The investor’s Plan account was credited with the number of shares of the Company’s Common Stock acquired under the Units purchased. Each warrant affords the investor the opportunity to purchase one share of Company Common Stock at a warrant exercise price of $1.00. The warrant is referred to as “ZNWAJ.”

The warrants became exercisable on October 29, 2018 and continue to be exercisable through October 29, 2020 at a per share exercise price of $1.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of October 29, 2019 to October 29, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAJ Warrant by one (1) year from the expiration date of October 29, 2020 to October 29, 2021.

On December 10, 2018, the Company initiated another Unit Option and it terminated on January 23, 2019. The Unit Option consisted of Units of the Company’s securities where each Unit (priced at $250.00 each) is comprised of (i) two hundred and fifty (250) shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional two hundred and fifty (250) shares of Common Stock at a per share exercise price of $0.01. The investor’s Plan account was credited with the number of shares of the Company’s Common Stock and Warrants that are acquired under the Units purchased. Each warrant affords the participant the opportunity to purchase one share of our Common Stock at a warrant exercise price of $0.01. The warrant is referred to as “ZNWAK.”

The warrants became exercisable on February 25, 2019 and continue to be exercisable through February 25, 2020 at a per share exercise price of $0.01.

On May 29, 2019, the Company extended the termination date of the ZNWAK Warrant by one (1) year from the expiration date of February 25, 2020 to February 25, 2021.

On April 24, 2019, the Company’s most recent Unit Option began and it terminated on June 26, 2019, after the Company, on June 5, 2019, extended the termination date of the Unit Option.

The Unit Option consists of Units of the Company’s securities where each Unit (priced at $250.00 each) is comprised of (i) two hundred and fifty (250) shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional fifty (50) shares of Common Stock at a per share exercise price of $2.00. The investor’s Plan account will be credited with the number of shares of the Company’s Common Stock and Warrants that are acquired under the Units purchased. For Plan participants who enroll into the Unit Program with the purchase of at least one Unit and also enroll in the separate Automatic Monthly Investments (“AMI”) program at a minimum of $50.00 per month or more, will receive an additional twenty-five (25) warrants at an exercise price of $2.00 during this Unit Option Program. The twenty-five (25) additional warrants are for enrolling into the AMI program. Existing subscribers to the AMI are entitled to the additional twenty-five (25) warrants once, if they purchase at least one (1) unit during the Unit program. Each warrant affords the participant the opportunity to purchase one share of our Common Stock at a warrant exercise price of $2.00. The warrant is referred to as “ZNWAL.”

The warrants will become exercisable on August 26, 2019 and continue to be exercisable through August 26, 2021 at a per share exercise price of $2.00.

For the three and six months ended June 30, 2019, net proceeds of approximately $3,108,000 and $5,636,000, respectively, were raised under the DSPP program.

For the three and six months ended June 30, 2018, net proceeds of approximately $2,118,000 and $5,953,000, respectively, were raised under the DSPP program.

The warrants represented by the ticker ZNWAA are tradable on the NASDAQ market. However, all of the other warrants characterized above, in the table below, and throughout this Form 10-Q, are not tradeable and are used internally for classification and accounting purposes only.

The price and the expiration dates for the series of warrants to investors are as follows * :

		Period of Grant	US$		Expiration Date
ZNWAA Warrants	B	March 2013 – December 2014		2.00	January 31, 2021
ZNWAD Warrants	A,B	January 2015 – March 2016		1.00	May 02, 2021
ZNWAE Warrants	B	November 2016 – March 2017		1.00	May 01, 2021
ZNWAF Warrants	A,B	May 2017 – July 2017		1.00	August 14, 2021
ZNWAG Warrants		October 2017 – December 2017		1.00	January 08, 2021
ZNWAH Warrants	A,B	February 2018		5.00	April 2, 2021
ZNWAI Warrants	A,B	April 2018 – May 2018		3.00	June 29, 2021
ZNWAJ Warrants	B	August 2018 – September 2018		1.00	October 29, 2021
ZNWAK Warrants	B	December 2018 – January 2019		0.01	February 25, 2021
ZNWAL Warrants		July 2019 – August 2019		2.00	August 26, 2021

*	Zion’s ZNWAB Warrants expired on May 2, 2017, and the ZNWAC Warrants expired on May 2, 2018
A	On December 4, 2018, the Company extended the termination date of the Warrants by one (1) year.
B	On May 29, 2019, the Company extended the termination date of the Warrants by one (1) year.

G. Subscription Rights Offering

On April 2, 2018 the Company announced an offering (“2018 Subscription Rights Offering”) through American Stock Transfer & Trust Company, LLC (the “Subscription Agent”), at no cost to the shareholders, of non-transferable Subscription Rights to purchase Rights (each “Right” and collectively, the “Rights”) of its securities to persons who owned shares of our Common Stock on April 13, 2018 (“the Record Date”). Pursuant to the 2018 Subscription Rights Offering, each holder of shares of common stock on the Record Date received non-transferable rights to subscribe for Rights, with each Right comprised of one share of the Company Common Stock, par value $0.01 per share (the “Common Stock”) and one Common Stock Purchase Warrant to purchase an additional one share of Common Stock. Each Right could be purchased at a per Right subscription price of $5.00. Each Warrant affords the investor the opportunity to purchase one share of the Company Common Stock at a warrant exercise price of $3.00. The warrant is referred to as “ZNWAI.”

The warrants became exercisable on June 29, 2018 and continue to be exercisable through June 29, 2020 at a per share exercise price of $3.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of June 29, 2019 to June 29, 2020.

On May 29, 2019, the Company extended the termination date of the ZNWAI Warrant by one (1) year from the expiration date of June 29, 2020 to June 29, 2021.

Each shareholder received .10 (one tenth) of a subscription right (i.e. one subscription right for each 10 shares owned) for each share of the Company’s Common Stock owned on the Record Date.

The 2018 Subscription Rights Offering terminated on May 31, 2018. The Company raised net proceeds of approximately $3,038,000, from the Rights Offering, after deducting related fees and expenses of $243,000.

H. Warrant Table

The warrant transactions since January 1, 2019 are shown in the table below:

Warrants	Exercise Price		Warrant Termination Date	Outstanding Balance, 12/31/18		Warrants Issued		Warrants Exercised			Warrants Expired		Outstanding Balance, 6/30/19
ZNWAA	$	2.00	1/31/2021		1,498,804		0		0			0		1,498,804
ZNWAD	$	1.00	5/2/2021		243,853		0		0			0		243,853
ZNWAE	$	1.00	5/2/2021		2,144,510		0		(40	)		0		2,144,470
ZNWAF	$	1.00	8/14/2021		359,610		0		0			0		359,610
ZNWAG	$	1.00	1/8/2021		240,578		0		0			0		240,578
ZNWAH	$	5.00	4/19/2021		372,400		0		0			0		372,400
ZNWAI	$	3.00	6/29/2021		640,735		0		(5	)		0		640,730
ZNWAJ	$	1.00	10/29/2021		546,050		0		(25	)		0		546,025
ZNWAK	$	0.01	2/25/2021		0		673,600		(199,500	)		0		474,100
Outstanding warrants					6,046,540		673,600		(199,570	)		0		6,520,570

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Unproved Oil and Gas Properties, Full Cost Method

6 Months Ended

Jun. 30, 2019

Extractive Industries [Abstract]

Unproved Oil and Gas Properties, Full Cost Method

Note 4 - Unproved Oil and Gas Properties, Full Cost Method

Unproved oil and gas properties, under the full cost method, are comprised as follows:

	June 30, 2019		December 31, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		1,243		1,242
Capitalized salary costs		1,668		1,579
Capitalized interest costs		715		677
Legal costs, license fees and other preparation costs		3,484		3,216
Other costs		11		-
		*7,121		*6,714

* The unproved oil and gas properties balance at June 30, 2019 and at December 31, 2018 contains approximately $136,000 and $2,946,000, respectively, in unpaid amounts.

Impairment of unproved oil and gas properties comprised as follows:

	June 30, 2019		June 30, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		159		-
Other costs		69		-
		228		-

Changes in Unproved oil and gas properties during the six months ended June 30, 2019 and 2018 are as follows:

	June 30, 2019		June 30, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		1		7,326
Capitalized salary costs		89		423
Capitalized interest costs		38		156
Legal costs, license fees and other preparation costs		268		596
Other costs		11		143
		*407		*8,644

· Inclusive of non-cash amounts of approximately $174,000 and $3,872,000 during the six months ended June 30, 2019, and 2018, respectively.

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Senior Convertible Bonds

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Senior Convertible Bonds

Note 5 - Senior Convertible Bonds

Rights Offering -10% Senior Convertible Notes due May 2, 2021

On October 21, 2015, the Company filed with the SEC a prospectus supplement for a rights offering. Under the rights offering, the Company distributed at no cost, 360,000 non-transferable subscription rights to subscribe for, on a per right basis, two 10% Convertible Senior Bonds par $100 due May 2, 2021 (the “Notes”), to shareholders of the Company’s Common Stock on October 15, 2015, the record date for the offering. Each whole subscription right entitled the participant to purchase two convertible bonds at a purchase price of $100 per bond. Effective October 21, 2015, the Company executed a Supplemental Indenture, as issuer, with the American Stock Transfer & Trust Company, LLC, a New York limited liability trust company (“AST”), as trustee for the Notes (the “Indenture”).

On March 31, 2016, the rights offering terminated.

On May 2, 2016, the Company issued approximately $3,470,000 aggregate principal amount of Notes in connection with the rights offering. The Company received net proceeds of approximately $3,334,000, from the issuance of the Notes, after deducting fees and expenses of $136,000 incurred in connection with the offering. These costs have been discounted as deferred offering costs. 

The Notes contain a convertible option that gives rise to a derivative liability, which is accounted for separately from the Notes (see below and Note 6). Accordingly, the Notes were initially recognized at fair value of approximately $1,844,000, which represents the principal amount of $3,470,000 from which a debt discount of approximately $1,626,000 (which is equal to the fair value of the convertible option) was deducted. 

During the six months ended June 30, 2019, the Company recorded approximately $13,000 in amortization expense related to the deferred financing costs, approximately $187,000 in debt discount amortization, and approximately $10,000 related to financing gains associated with notes converted to shares. The Notes are governed by the terms of the Indenture. The Notes are senior unsecured obligations of the Company and bear interest at a rate of 10% per year, payable annually in arrears on May 2 of each year, commencing May 2, 2017. The Notes will mature on May 2, 2021, unless earlier redeemed by the Company or converted by the holder.

Interest and principal may be paid, at the Company’s option, in cash or in shares of the Company’s Common Stock. The number of shares for the payment of interest in shares of Common Stock, in lieu of the cash amount, will be based on the average of the closing prices of the Company’s Common Stock as reported by Bloomberg L.P. for the 30 trading days preceding the record date for the payment of interest; such record date has been designated and will always be the 10^th business day prior to the interest payment date on May 2 of each year. The number of shares for the payment of principal, in lieu of the cash amount, shall be based upon the average of the closing price of the Company’s Common Stock as reported by Bloomberg L.P. for the 30 trading days preceding the principal repayment date; such record date has been designated as the trading day immediately prior to the 30-day period preceding the maturity date of May 2, 2021. Fractional shares were not issued, and the final number of shares were rounded up to the next whole share.

On May 2, 2019, the Company paid its annual 10% interest to its bondholders of record on April 18, 2019. The interest was paid-in-kind (“PIK”) in the form of Common Stock. An average of the Company stock price of $0.774 was determined based on the 30 trading days prior to the record date of April 18, 2019. This figure was used to divide into 10% of the par value of the bonds held by the holders. The Company issued 422,426 shares to the accounts of its bondholders.

At any time prior to the close of business on the business day immediately preceding April 2, 2021, holders may convert their notes into Common Stock at the conversion rate of 44 shares per $100 bond (which is equivalent to a conversion rate of approximately $2.27 per share). The conversion rate is subject to adjustment from time to time upon the occurrence of certain events, including, but not limited to, the issuance of stock dividends and payment of cash dividends.

Beginning May 3, 2018, the Company was entitled to redeem for cash the outstanding Notes at an amount equal to the principal and accrued and unpaid interest, plus a 10% premium. No “sinking fund” is provided for the Notes due May 2, 2021, which means that the Company is not required to periodically redeem or retire the Notes due May 2, 2021.

Through the six months ended June 30, 2019 approximately 122 convertible bonds of $100 each, have been converted at a conversion rate of approximately $2.27 per share. As a result, the Company issued approximately 5,368 shares of its Common Stock and recorded approximately $10,000 in financial gains during the same period.

	June 30, 2019			December 31, 2018
	US$ thousands			US$ thousands
10% Senior Convertible Bonds, on the day of issuance	$	3,470		$	3,470
Unamortized Debt discount, net	$	(806	)	$	(993	)
Bonds converted to shares	$	(216	)	$	(203	)
Offering cost, net	$	(50	)	$	(63	)
10% senior Convertible bonds – Long Term Liability	$	2,398		$	2,211

Capitalized interest for the three and six months ended June 30, 2019 were $28,000 and $38,000 compared to $71,000 and $156,000 for the three and six months ended June 30, 2018.

Interest expenses for the three and six months ended June 30, 2019 were $54,000 and $111,000 compared to $0 and $0 for the three and six months ended June 30, 2018.

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Derivative Liability

6 Months Ended

Jun. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Liability

Note 6 - Derivative Liability

The Notes issued by the Company and discussed in Note 5 contain a convertible option that gives rise to a derivative liability.

The debt instrument the Company issued includes a make-whole provision, which provides that in the event of conversion by the investor under certain circumstances, the issuer is required to deliver to the holder additional consideration beyond the settlement of the conversion obligation.

Because time value make-whole provisions are not clearly and closely related to the debt host and would meet the definition of a derivative if considered freestanding, they are evaluated under the indexation guidance to determine whether they would be afforded the scope exception pursuant to ASC 815-10-15-74(a). This evaluation is generally performed in conjunction with the analysis of the embedded conversion feature.

The Company has measured its derivative liability at fair value and recognized the derivative value as a current liability and recorded the derivative value on its balance sheet. Changes in the fair value recorded are recorded as a gain or loss in the accompanying statement of operations.

The valuation of the Notes was done by using the Binomial Model, a well-accepted option-pricing model, and based on the Notes' terms and other parameters the Company identified as relevant for the valuation of the Notes' Fair Value.

The Binomial Model used the forecast of the Company share price during the Note's contractual term.

As of June 30, 2019, the Company's liabilities that are measured at fair value are as follows:

	June 30, 2019				December 31, 2018
	Level 3		Total		Level 3		Total
	US$ thousands		US$ thousands		US$ thousands		US$ thousands
Fair value of derivative liability		263		263		345		345

Change in value of derivative liability during 2019 are as follows:

	US$ thousands
Derivative liability fair value at December 31, 2018		345
Gain on derivative liability		(82	)
Derivative liability fair value at June 30, 2019		263

The following table presents the assumptions that were used for the model as of June 30, 2019:

	June 30, 2019			December 31, 2018
Convertible Option Fair Value of approximately	$	263,000		$	345,000
Annual Risk-free Rate		1.75	%		2.47	%
Volatility		117.22	%		115.35	%
Expected Term (years)		1.84			2.34
Convertible Notes Face Value	$	3,254,900		$	3,266,700
Expected annual yield on Regular Notes		28.77	%		28.77	%
Price of the Underlying Stock	$	0.76		$	0.42

The Company recognized a gain on derivative liability of $460,000 for the three months ended June 30, 2019 and a gain on derivative liability of $82,000 for the six months ended June 30, 2019. The Company recognized a gain on derivative liability of $968,000 for the three months ended June 30, 2018 and a loss on derivative liability of $2,566,000 for the six months ended June 30, 2018. A slight change in an unobservable input like volatility could have a significant impact on the fair value measurement of the derivative liability.

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Right of Use Leases Assets and Leases Obligations

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Right of use leases assets and leases obligations

Note 7 - Right of use leases assets and leases obligations

The Company is a lessee in several non-cancelable operating leases, primarily for transportation and office spaces.

The table below presents the operating lease assets and liabilities recognized on the balance sheets as of June 30, 2019:

	June 30, 2019		December 31, 2018
	US$ thousands		US$ thousands
Operating lease assets	$	685	$	-
Operating lease liabilities:
Current operating lease liabilities	$	216	$	-
Non-current operating lease liabilities	$	516	$	-
Total operating lease liabilities	$	732	$	-

The depreciable lives of operating lease assets and leasehold improvements are limited by the expected lease term.

The Company's leases generally do not provide an implicit rate, and therefore the Company uses its incremental borrowing rate as the discount rate when measuring operating lease liabilities. The incremental borrowing rate represents an estimate of the interest rate the Company would incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis over the term of a lease within a particular currency environment. The Company used incremental borrowing rates as of January 1, 2019 for operating leases that commenced prior to that date.

The Company's weighted average remaining lease term and weighted average discount rate for operating leases as of June 30, 2019 are:

	June 30, 2019
Weighted average remaining lease term (years)		3.7
Weighted average discount rate		6.0	%

The table below reconciles the undiscounted future minimum lease payments (displayed by year and in the aggregate) under non-cancelable operating leases with terms of more than one year to the total operating lease liabilities recognized on the condensed balance sheets as of June 30, 2019:

	US$ thousands
July 1, 2019 through December 31, 2019		275
2020		261
2021		136
2022		136
2023		80
Thereafter		-
Total undiscounted future minimum lease payments		888
Less: portion representing imputed interest		(155	)
Total undiscounted future minimum lease payments		733

Operating lease costs were $64,000 and $132,000 for the three and six months ended June 30, 2019, respectively. Operating lease costs are included within general and administrative expenses on the statements of income.

Cash paid for amounts included in the measurement of operating lease liabilities were $68,000 and $139,000 for the three and six months ended June 30, 2019, and this amount is included in operating activities in the statements of cash flows. Right-of-use assets obtained in exchange for new operating lease liabilities were $819,000 for the six months ended June 30, 2019.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 8 - Commitments and Contingencies

A. Securities and Exchange Commission (“SEC”) Investigation

As previously disclosed by the Company, on June 21, 2018, Zion received a subpoena to produce documents from the Fort Worth office of the SEC informing the Company of the existence of a non-public, fact-finding inquiry into the Company. Prior to the receipt of the subpoena on June 21, 2018, Zion had no previous communication with the SEC on this issue and was unaware of this investigation. The SEC stated that “the investigation and the subpoena do not mean that we have concluded that [Zion] or anyone else has violated the law.” To date, Zion has furnished all required documents to the SEC and will continue to fully cooperate with the investigation.

The Company cannot predict when this matter will be resolved or what further action, if any, the SEC may take in connection with it.

B. Litigation

Following the commencement of the SEC investigation, on August 9, 2018, a putative class action (the “class action”) Complaint was filed against Zion, Victor G. Carrillo, the Company’s Chief Executive Officer at such time, and Michael B. Croswell Jr., the Company’s Chief Financial Officer (collectively, the “Defendants”) in the U.S. District Court for the Northern District of Texas. On November 16, 2018, the Court entered an Order in the class action appointing lead plaintiffs and approving lead counsel and on January 22, 2019, an Amended Complaint was filed. On February 1, 2019, a Corrected Amended Class Action Complaint was filed. The suit alleges violations of Section 10(b) of the Securities Exchange Act of 1934 (the “Exchange Act”) and Rule 10b-5 promulgated thereunder by the SEC and Section 11 of the Securities Act of 1933 (the “Securities Act”) against all defendants and alleges violations of Section 20(a) of the Exchange Act and Section 15 of the Securities Act against the individual defendants. The alleged class period is from February 13, 2018 through November 20, 2018. On March 13, 2019, a Motion to Dismiss Plaintiffs’ Corrected Amended Complaint was filed on behalf of Zion, Victor Carrillo and Michael B. Croswell, Jr., pleading numerous grounds in support of their Motion to Dismiss. On April 29, 2019 Plaintiffs filed a Response to Defendants’ Motion to Dismiss, and on May 29, 2019 Defendants filed a Reply to Plaintiffs’ Response.

 By Verified Consolidated Stockholder Derivative Complaint filed on March 4, 2019, three (3) stockholder derivative lawsuits previously filed in federal district court in Delaware on September 10, 2018, November 1, 2018, and November 21, 2018 were consolidated into one lawsuit filed derivatively and purportedly on behalf of the Company against Victor G. Carrillo, Michael B. Croswell, Jr., John M. Brown, Dustin L. Guinn, Forest A. Garb, Kent S. Siegel, Paul Oroian, William H. Avery, the Estate of Yehezkel Druckman, Lee Russell, Justin W. Furnace, Gene Scammahorn, Ralph F. DeVore, and Martin M. van Brauman. The suit alleges breach of fiduciary duty, unjust enrichment, violations of Section 14(a) of the Exchange Act and conspiracy to “facilitate and disguise” other alleged wrongdoings. The “Relevant Period” of alleged wrongdoing spans from February 13, 2018 and continues through the present. The suit seeks unspecified damages to be awarded to the Company, orders directing the Company and individual defendants to make certain corporate governance reforms, restitution, and fees and costs. On April 18, 2019, a Motion to Dismiss Plaintiffs’ Complaint was filed on behalf of all defendants pleading numerous grounds in support of their Motion to Dismiss. On June 3, 2019 Plaintiffs filed a Response to Defendants’ Motion to Dismiss, and on July 3, 2019 Defendants filed a Reply to Plaintiffs’ Response.

On September 25, 2018, another lawsuit was filed in the 68^th district court, Dallas County, Texas derivatively and purportedly on behalf of the Company against John M. Brown, Forrest A. Garb, Kent S. Siegel, Michael B. Croswell, Jr., Dustin L. Guinn, Victor G. Carrillo, Paul Oroian, William H. Avery, Justin W. Furnace, Gene Scammahorn, Martin M. van Brauman, and Lee R. Russell and the Company as a nominal defendant. This suit alleges claims for breaches of fiduciary duty and unjust enrichment against the individual defendants in connection with certain public statements made by the Company from March 12, 2018 to May 30, 2018. On March 29, 2019, this lawsuit was voluntarily dismissed by Plaintiff without prejudice to its subsequent refiling.

On October 29, 2018, Zion received a shareholder request to inspect books and records pursuant to Section 220 of the Delaware General Corporation Law for the purpose of investigating potential corporate mismanagement and breaches of fiduciary duty in connection with public statements made by the Company from March 12, 2018 to May 30, 2018.  The Company responded to this request.

The Company disputes the above claims and has made an advanced deposit of $500,000 to defense counsel for the cost of defending the litigation. The Company carries insurance that is applicable to these claims. Because of the uncertainties of litigation, it is not feasible to predict or determine the outcome of these matters, to guarantee that there will be no liability, or to reasonably estimate any loss in excess of its coverage. However, the Company intends to pursue a vigorous defense to the claims.

From time to time, the Company may also be subject to routine litigation, claims or disputes in the ordinary course of business. The Company defends itself vigorously in all such matters. However, we cannot predict the outcome or effect of any of the litigation or any other pending litigation or claims.

C. Environmental and Onshore Licensing Regulatory Matters

The Company is engaged in oil and gas exploration and production and may become subject to certain liabilities as they relate to environmental cleanup of well sites or other environmental restoration procedures and other obligations as they relate to the drilling of oil and gas wells or the operation thereof. Various guidelines have been published in Israel by the State of Israel’s Petroleum Commissioner and Energy and Environmental Ministries as it pertains to oil and gas activities. Mention of these older guidelines was included in previous Zion filings.

On March 15, 2018, the Energy Ministry issued new guidelines regarding a uniform reporting manner by which the operator must submit to the Commissioner data and materials regarding lawful exploration and production activities. The guidelines detail the timeline, data, forms, format, media and materials (such as rock cuttings, cores, gas and oil samples) that must be submitted for seismic and drilling activities.

On April 8, 2019 the Energy Ministry issued new procedural guidelines regarding a uniform reporting manner by which the rights holder in a license must submit a quarterly report regarding a summary of license history, the nature, scope, location and results of the exploration work, specification of the amounts expended for the exploration work, and the results and interpretation of the exploration work and basic data on which these results and interpretation are based. The guidelines will be binding as from the date of submission of the report for the third quarter 2019.

The Company believes that these new regulations are likely to continue to increase the expenditures associated with obtaining new exploration rights and drilling new wells. The Company expects that an additional financial burden could occur as a result of requiring cash reserves that could otherwise be used for operational purposes. In addition, these new regulations are likely to continue to increase the time needed to obtain all of the necessary authorizations and approvals to drill and production test exploration wells.

D. Bank Guarantees

As of June 30, 2019, the Company provided Israeli-required bank guarantees to various governmental bodies (approximately $1,010,000) and others (approximately $85,000) with respect to its drilling operation in an aggregate amount of approximately $1,095,000. The (cash) funds backing these guarantees and additional amounts added to support currency fluctuations as required by the bank are held in restricted interest-bearing accounts and are reported on the Company’s balance sheets as fixed short-term bank deposits – restricted, and fixed long-term bank deposits – restricted. 

E. Risks

Market risk is a broad term for the risk of economic loss due to adverse changes in the fair value of a financial instrument. These changes may be the result of various factors, including interest rates, foreign exchange rates, commodity prices and/or equity prices. In the normal course of doing business, we are exposed to the risks associated with foreign currency exchange rates and changes in interest rates.

Foreign Currency Exchange Rate Risks. A portion of our expenses, primarily labor expenses and certain supplier contracts, are denominated in New Israeli Shekels (“NIS”). As a result, we have significant exposure to the risk of fluctuating exchange rates with the U.S. Dollar (“USD”), our primary reporting currency. During the period January 1, 2019 through June 30, 2019, the USD has fluctuated by approximately 4.9% against the NIS (the USD has weakened relative to the NIS). By contrast, during the period January 1, 2018 through December 31, 2018, the USD fluctuated by approximately 8.1% against the NIS (the USD strengthened relative to the NIS). Continued weakening of the US dollar against the NIS will result in higher operating costs from NIS denominated expenses. To date, we have not hedged any of our currency exchange rate risks, but we may do so in the future.

Interest Rate Risk. Our exposure to market risk relates to our cash and investments. We maintain an investment portfolio of short-term bank deposits and money market funds. The securities in our investment portfolio are not leveraged, and are, due to their very short-term nature, subject to minimal interest rate risk. We currently do not hedge interest rate exposure. Because of the short-term maturities of our investments, we do not believe that a change in market interest rates would have a significant negative impact on the value of our investment portfolio except for reduced income in a low interest rate environment. At June 30, 2019, we had cash, cash equivalents and short-term bank deposits, inclusive of restricted cash, of approximately $4,180,000. The weighted average annual interest rate related to our cash and cash equivalents for the six months ended June 30, 2019 was approximately 0.13%.

The primary objective of our investment activities is to preserve principal while at the same time maximizing yields without significantly increasing risk. To achieve this objective, we invest our excess cash in short-term bank deposits and money market funds that may invest in high quality debt instruments.

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Subsequent Events

6 Months Ended

Jun. 30, 2019

Subsequent Events [Abstract]

Subsequent Events

Note 9 - Subsequent Events

(i)	Approximately $379,000 was collected through the Company’s ongoing DSPP program during the period July 1 through 31, 2019.
(ii)	On July 1, 2019, options to purchase 100,000 shares of Common Stock were granted to one senior officer at an exercise price of $0.01 per share. The options are fully vested upon grant and are exercisable through July 1, 2029. The fair value of the options at the date of grant amounted to approximately $35,000.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Net Gain (Loss) per Share Data

A. Net Gain (Loss) per Share Data

Basic and diluted net (loss) gain per share of common stock, par value $0.01 per share ("Common Stock"), is presented in conformity with ASC 260-10 "Earnings Per Share." Diluted net loss per share is the same as basic net loss per share, as the inclusion of 9,644,820 and 9,265,636 Common Stock equivalents in the six-month period ended June 30, 2019 and 2018 respectively, would be anti-dilutive.

Use of Estimates

B. Use of Estimates

The preparation of the accompanying financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions about future events. These estimates and the underlying assumptions affect the amounts of assets and liabilities reported, disclosures about contingent assets and liabilities, and reported amounts of revenues and expenses. Such estimates include the valuation of unproved oil and gas properties, deferred tax assets, asset retirement obligations and legal contingencies. These estimates and assumptions are based on management's best estimates and judgment. Management evaluates its estimates and assumptions on an ongoing basis using historical experience and other factors, including the current economic environment, which management believes to be reasonable under the circumstances. The Company adjusts such estimates and assumptions when facts and circumstances dictate. Illiquid credit markets, volatile equity, foreign currency, and energy markets have combined to increase the uncertainty inherent in such estimates and assumptions. As future events and their effects cannot be determined with precision, actual results could differ significantly from these estimates. Changes in those estimates resulting from continuing changes in the economic environment will be reflected in the financial statements in future periods.

Oil and Gas Properties and Impairment

C. Oil and Gas Properties and Impairment

The Company follows the full-cost method of accounting for oil and gas properties. Accordingly, all costs associated with acquisition, exploration and development of oil and gas reserves, including directly related overhead costs, are capitalized.

All capitalized costs of oil and gas properties, including the estimated future costs to develop proved reserves, are amortized on the unit-of-production method using estimates of proved reserves. Investments in unproved properties and major development projects are not amortized until proved reserves associated with the projects can be determined or until impairment occurs. If the results of an assessment indicate that the properties are impaired, the amount of the impairment is included in loss from continuing operations before income taxes, and the adjusted carrying amount of the proved properties is amortized on the unit-of-production method.

The Company’s oil and gas property represents an investment in unproved properties. These costs are excluded from the amortized cost pool until proved reserves are found or until it is determined that the costs are impaired. All costs excluded are reviewed at least quarterly to determine if impairment has occurred. The amount of any impairment is charged to expense since a reserve base has not yet been established. Impairment requiring a charge to expense may be indicated through evaluation of drilling results, relinquishing drilling rights or other information.

During the fourth quarter of 2018, the Company testing protocol was concluded at the Megiddo Jezreel #1 (“MJ #1”) well. The test results confirmed that the MJ #1 well did not contain hydrocarbons in commercial quantities in the zones tested. As a result, in the year ended December 31, 2018, the Company recorded a non-cash impairment charge to its unproved oil and gas properties of $30,906,000 (see Note 4). During the three and six months ended June 30, 2019, the Company recorded post-impairment charges of approximately $65,000 and $228,000, respectively.

Currently, the Company has no economically recoverable reserves and no amortization base. The Company’s unproved oil and gas properties consist of capitalized exploration costs of $7,121,000 and $6,714,000 as of June 30, 2019, and December 31, 2018, respectively.

Fair Value Measurements

D. Fair Value Measurements

The Company follows Accounting Standards Codification (ASC) 820, "Fair Value Measurements and Disclosures," as amended by Financial Accounting Standards Board (FASB) Financial Staff Position (FSP) No. 157 and related guidance. Those provisions relate to the Company's financial assets and liabilities carried at fair value and the fair value disclosures related to financial assets and liabilities. ASC 820 defines fair value, expands related disclosure requirements, and specifies a hierarchy of valuation techniques based on the nature of the inputs used to develop the fair value measures. Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, assuming the transaction occurs in the principal or most advantageous market for that asset or liability.

There are three levels of inputs to fair value measurements - Level 1, meaning the use of quoted prices for identical instruments in active markets; Level 2, meaning the use of quoted prices for similar instruments in active markets or quoted prices for identical or similar instruments in markets that are not active or are directly or indirectly observable; and Level 3, meaning the use of unobservable inputs.

The Company uses Level 1 inputs for its fair value measurements whenever there is an active market, with actual quotes, market prices, and observable inputs on the measurement date. The Company uses Level 2 inputs for fair value measurements whenever there are quoted prices for similar securities in an active market or quoted prices for identical securities in an inactive market. The Company uses Level 3 inputs in the Binomial Model used for the valuation of the derivative liability.

Derivative Liabilities

E. Derivative Liabilities

In accordance with ASC 815-40-25 and ASC 815-10-15 Derivatives and Hedging and ASC 480-10-25 Liabilities-Distinguishing Liabilities from Equity, the embedded derivatives associated with the Convertible Bonds are accounted for as a liability during the term of the related Convertible Bonds (see Note 6).

Stock-Based Compensation

F. Stock-Based Compensation

ASC 718, “Compensation – Stock Compensation,” prescribes accounting and reporting standards for all share-based payment transactions in which employee and non-employee services are acquired. Transactions include incurring liabilities, or issuing or offering to issue shares, options, and other equity instruments such as employee stock ownership plans and stock appreciation rights. Share-based payments to employees and non-employees, including grants of stock options, are recognized as compensation expense in the financial statements based on their fair values. That expense is recognized over the requisite service period (usually the vesting period).

The Company accounts for stock-based compensation issued to non-employees and consultants in accordance with the provisions of ASC 505-50, “Equity – Based Payments to Non-Employees.” Measurement of share-based payment transactions with non-employees is based on the fair value of whichever is more reliably measurable: (a) the goods or services received; or (b) the equity instruments issued. The fair value of the share-based payment transaction is determined at the earlier of performance commitment date or performance completion date.

Related parties

G. Related parties

Parties are considered to be related to the Company if the parties, directly or indirectly, through one or more intermediaries, control, are controlled by, or are under common control with the Company. Related parties also include principal owners of the Company, its management, members of the immediate families of principal owners of the Company and its management and other parties with which the Company may deal if one party controls or can significantly influence the management or operating policies of the other to an extent that one of the transacting parties might be prevented from fully pursuing its own separate interests. All transactions with related parties are recorded at fair value of the goods or services exchanged.

Recently Adopted Accounting Pronouncements

H. Recently Adopted Accounting Pronouncements

ASU 2016-02 and ASU 2018-01 – Leases (Topic 842)

In February 2016, the Financial Accounting Standards Board (“FASB”) issued ASU 2016-02, Leases (Topic 842) (“ASU 2016-02”) in order to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under previous GAAP. ASU 2016-02 requires that a lessee should recognize a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term on the balance sheet. ASU 2016-02 is effective for fiscal years beginning after December 15, 2018 (including interim periods within those periods) using a modified retrospective approach and early adoption is permitted. Zion adopted ASU 2016-02 in the first quarter of 2019. Presently, Zion has operating leases for office space in Dallas, Texas and in Caesarea, Israel plus various leases for motor vehicles. These leases have been accounted for under ASU 2016-02 in 2019 by establishing a right-of-use asset and a corresponding current lease liability and non-current lease liability. Zion is not subject to any loan covenants and therefore, the increase in assets and liabilities does not have a material impact on its business.

In January 2018, the FASB issued ASU 2018-01, “Land Easement Practical Expedient for Transition to “Topic 842.”

The amendments in this Update provide an optional transition practical expedient to not evaluate under Topic 842 existing or expired land easements that were not previously accounted for as leases under Topic 840, Leases. An entity that elects this practical expedient should evaluate new or modified land easements under Topic 842 beginning at the date that the entity adopts Topic 842. An entity that does not elect this practical expedient should evaluate all existing or expired land easements in connection with the adoption of the new lease requirements in Topic 842 to assess whether they meet the definition of a lease. The Company does not have any land easements and believes that this ASU 2018-01 has no effect on the Company.

ASU 2016-15 and ASU 2016-08 – Statement of Cash Flows (Topic 230)

In August 2016, the FASB issued AS 2016-15, “Classification of Certain Cash Receipts and Cash Payments”, which clarifies how certain cash receipts and cash payments are presented and classified in the statement of cash flows. The effective date for ASU 2016-15 is for fiscal years beginning after December 15, 2018, and interim periods within fiscal years beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact of adopting ASU 2016-15 on our financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows (Topic 230) (“ASU 2016-18”), which requires that restricted cash and restricted cash equivalents be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total cash amounts shown on the statement of cash flows. The effective date for ASU 2016-18 is for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted. We adopted ASU 2016-18 effective January 1, 2018. The adoption of ASU 2016-18 had no impact on our retained earnings, and no impact to our net income on an ongoing basis. Adoption of the new standard requires that a statement of cash flows explain the change during the period in the total of cash, cash equivalents and amounts generally described as restricted cash, or restricted cash equivalents. The amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statements of cash flows. The amendments have been applied using a retrospective transition method to each period presented, as required.

ASU 2018-05 – Income Taxes (Topic 740)

In March 2018, the FASB issued ASU 2018-05, “Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118”. This ASU expresses the view of the staff regarding application of Topic 740, Income Taxes, in the reporting period that includes December 22, 2017, the date on which the Tax Cuts and Jobs Act (H.R.1, An Act to Provide for Reconciliation Pursuant to Titles II and V of the Concurrent Resolution on the Budget for Fiscal Year 2018) was signed into law. The Company is currently evaluating the impact of adopting ASU 2018-05 on our financial statements.  

ASU 2016-09

In March 2016, the FASB issued ASU No. 2016-09, Compensation – Stock Compensation, or ASU No. 2016-09. The areas for simplification in this Update involve several aspects of the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. For public entities, the amendments in this Update are effective for annual periods beginning after December 15, 2016, and interim periods within those annual periods. Early adoption is permitted in any interim or annual period. If an entity early adopts the amendments in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes that interim period. An entity that elects early adoption must adopt all of the amendments in the same period. Amendments related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value should be applied using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. Amendments related to the presentation of employee taxes paid on the statement of cash flows when an employer withholds shares to meet the minimum statutory withholding requirement should be applied retrospectively. Amendments requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term should be applied prospectively. An entity may elect to apply the amendments related to the presentation of excess tax benefits on the statement of cash flows using either a prospective transition method or a retrospective transition method. The Company believes that this ASU No. 2016-09 has no impact on our financial statements.

The Company does not believe that the adoption of any recently issued accounting pronouncements in 2019 had a significant impact on our financial position, results of operations, or cash flow, except for ASC Update No. 2015-03—Interest—Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs, which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability, consistent with the presentation of a debt discount. For public business entities, the amendments in this Update are effective for financial statements issued for fiscal years beginning after December 15, 2015, and interim periods within those fiscal years. At June 30, 2019 and December 31, 2018, the Company reclassified $50,000 and $63,000, respectively, in deferred offering costs from an asset account and applied it to the outstanding debt balance (see Note 5).

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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2019

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of stock option transactions

	Number of shares			Weighted Average exercise price
				US$
Outstanding, December 31, 2018		4,788,443			1.37
Changes during 2019 to:
Granted to employees, officers, directors and others *		125,000			0.01
Expired/Cancelled/Forfeited		(385,693	)		2.07
Exercised		(52,500	)		0.01
Outstanding, June 30, 2019		4,475,250			1.29
Exercisable, June 30, 2019		4,375,250			1.32

* The receipt of a stock option grant by the grantee recipient is a non-taxable event according to the Internal Revenue Service. The grantee who later chooses to exercise penny stock options must recognize the market value in income in the year of exercise.

Schedule of stock options outstanding

Shares underlying outstanding options (non-vested)								Shares underlying outstanding options (fully vested)
Range of exercise price		Number outstanding		Weighted average remaining contractual life (years)		Weighted Average Exercise price		Range of exercise price		Number Outstanding		Weighted average remaining contractual life (years)		Weighted Average Exercise price
US$						US$		US$						US$
	—		—		—		—		0.01		15,000		4.37		0.01
	—		—		—		—		0.01		15,000		4.76		0.01
	—		—		—		—		0.01		5,000		4.95		0.01
	—		—		—		—		0.01		10,000		6.26		0.01
	—		—		—		—		0.01		25,000		6.50		0.01
	—		—		—		—		0.01		305,000		6.93		0.01
	—		—		—		—		0.01		525,000		7.50		0.01
	—		—		—		—		0.01		10,000		7.51		0.01
	—		—		—		—		0.01		60,000		7.79		0.01
	0.01		100,000		9.83		0.01		0.01		40,000		8.25		0.01
	—		—		—		—		0.01		180,000		8.50		0.01
	—		—		—		—		0.01		85,000		8.51		0.01
	—		—		—		—		0.01		45,000		8.66		0.01
	—		—		—		—		0.01		6,000		8.77		0.01
	—		—		—		—		0.01		25,000		9.52		0.01
	—		—		—		—		1.33		25,000		3.83		1.33
	—		—		—		—		1.38		108,000		1.51		1.38
	—		—		—		—		1.38		105,307		5.52		1.38
	—		—		—		—		1.55		400,000		2.93		1.55
	—		—		—		—		1.67		340,000		1.26		1.67
	—		—		—		—		1.67		405,943		5.26		1.67
	—		—		—		—		1.70		218,500		3.48		1.70
	—		—		—		—		1.75		400,000		4.02		1.75
	—		—		—		—		1.78		25,000		5.19		1.78
	—		—		—		—		1.87		25,000		2.59		1.87
	—		—		—		—		1.95		25,000		0.76		1.95
	—		—		—		—		1.96		25,000		0.18		1.96
	—		—		—		—		2.03		25,000		1.84		2.03
	—		—		—		—		2.31		400,000		4.51		2.31
									2.61		471,500		2.43		2.61
	—		—		—		—		4.15		25,000		5.01		4.15
	0.01		100,000				0.01		0.01-4.15		4,375,250				1.32

Schedule of compensation cost of warrant and option issuances

The following table sets forth information about the compensation cost of warrant and option issuances recognized for employees and directors:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	40		1,279

The following table sets forth information about the compensation cost of warrant and option issuances recognized for non-employees:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	—		302

The following table sets forth information about the compensation cost of option issuances recognized for employees and non-employees and capitalized to Unproved Oil & Gas properties:

For the six months ended June 30,
2019		2018
US$ thousands		US$ thousands
	—		328

Schedule of warrants description

		Period of Grant	US$		Expiration Date
ZNWAA Warrants	B	March 2013 – December 2014		2.00	January 31, 2021
ZNWAD Warrants	A,B	January 2015 – March 2016		1.00	May 02, 2021
ZNWAE Warrants	B	November 2016 – March 2017		1.00	May 01, 2021
ZNWAF Warrants	A,B	May 2017 – July 2017		1.00	August 14, 2021
ZNWAG Warrants		October 2017 – December 2017		1.00	January 08, 2021
ZNWAH Warrants	A,B	February 2018		5.00	April 2, 2021
ZNWAI Warrants	A,B	April 2018 – May 2018		3.00	June 29, 2021
ZNWAJ Warrants	B	August 2018 – September 2018		1.00	October 29, 2021
ZNWAK Warrants	B	December 2018 – January 2019		0.01	February 25, 2021
ZNWAL Warrants		July 2019 – August 2019		2.00	August 26, 2021

*	Zion's ZNWAB Warrants expired on May 2, 2017, and the ZNWAC Warrants expired on May 2, 2018
A	On December 4, 2018, the Company extended the termination date of the Warrants by one (1) year.
B	On May 29, 2019, the Company extended the termination date of the Warrants by one (1) year.

Non Employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of assumptions used to estimate fair value of warrants granted using black-scholes option pricing model

	For the six months ended June 30,
	2019		2018
Weighted-average fair value of underlying stock at grant date	$	—	$	3.37
Dividend yields		—		—
Expected volatility		—		73%-76	%
Risk-free interest rates		—		2.46%-2.81	%
Expected lives (in years)		—		10.00
Weighted-average grant date fair value	$	—	$	3.36

Employee [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of assumptions used to estimate fair value of warrants granted using black-scholes option pricing model

	For the six months ended June 30,
	2019			2018
Weighted-average fair value of underlying stock at grant date	$	0.53		$	2.34
Dividend yields		—			—
Expected volatility		87%-88	%		68%-75	%
Risk-free interest rates		2.31%-2.53	%		2.01%-2.58	%
Expected lives (in years)		5.00-5.34			3.00-5.50
Weighted-average grant date fair value	$	0.52		$	1.73

Dividend Reinvestment And Stock Purchase Plan [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of warrants description

Warrants	Exercise Price		Warrant Termination Date	Outstanding Balance, 12/31/18		Warrants Issued		Warrants Exercised			Warrants Expired		Outstanding Balance, 6/30/19
ZNWAA	$	2.00	1/31/2021		1,498,804		0		0			0		1,498,804
ZNWAD	$	1.00	5/2/2021		243,853		0		0			0		243,853
ZNWAE	$	1.00	5/2/2021		2,144,510		0		(40	)		0		2,144,470
ZNWAF	$	1.00	8/14/2021		359,610		0		0			0		359,610
ZNWAG	$	1.00	1/8/2021		240,578		0		0			0		240,578
ZNWAH	$	5.00	4/19/2021		372,400		0		0			0		372,400
ZNWAI	$	3.00	6/29/2021		640,735		0		(5	)		0		640,730
ZNWAJ	$	1.00	10/29/2021		546,050		0		(25	)		0		546,025
ZNWAK	$	0.01	2/25/2021		0		673,600		(199,500	)		0		474,100
Outstanding warrants					6,046,540		673,600		(199,570	)		0		6,520,570

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Unproved Oil and Gas Properties, Full Cost Method (Tables)

6 Months Ended

Jun. 30, 2019

Extractive Industries [Abstract]

Schedule of unproved oil and gas properties, full cost method

	June 30, 2019		December 31, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		1,243		1,242
Capitalized salary costs		1,668		1,579
Capitalized interest costs		715		677
Legal costs, license fees and other preparation costs		3,484		3,216
Other costs		11		-
		*7,121		*6,714

* The unproved oil and gas properties balance at June 30, 2019 and at December 31, 2018 contains approximately $136,000 and $2,946,000, respectively, in unpaid amounts.

	June 30, 2019		June 30, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		159		-
Other costs		69		-
		228		-

Schedule of changes in unproved oil and gas properties

	June 30, 2019		June 30, 2018
	US$ thousands		US$ thousands
Excluded from amortization base:
Drilling costs, and other operational related costs		1		7,326
Capitalized salary costs		89		423
Capitalized interest costs		38		156
Legal costs, license fees and other preparation costs		268		596
Other costs		11		143
		*407		*8,644

· Inclusive of non-cash amounts of approximately $174,000 and $3,872,000 during the six months ended June 30, 2019, and 2018, respectively.

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Senior Convertible Bonds (Tables)

6 Months Ended

Jun. 30, 2019

Debt Disclosure [Abstract]

Schedule of senior convertible bonds

	June 30, 2019			December 31, 2018
	US$ thousands			US$ thousands
10% Senior Convertible Bonds, on the day of issuance	$	3,470		$	3,470
Unamortized Debt discount, net	$	(806	)	$	(993	)
Bonds converted to shares	$	(216	)	$	(203	)
Offering cost, net	$	(50	)	$	(63	)
10% senior Convertible bonds – Long Term Liability	$	2,398		$	2,211

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Derivative Liability (Tables)

6 Months Ended

Jun. 30, 2019

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of fair value of derivative liabilities

	June 30, 2019				December 31, 2018
	Level 3		Total		Level 3		Total
	US$ thousands		US$ thousands		US$ thousands		US$ thousands
Fair value of derivative liability		263		263		345		345

Schedule of change in fair value of derivative liability

	US$ thousands
Derivative liability fair value at December 31, 2018		345
Gain on derivative liability		(82	)
Derivative liability fair value at June 30, 2019		263

Schedule of assumption used for the model of derivatives liabilities

	June 30, 2019			December 31, 2018
Convertible Option Fair Value of approximately	$	263,000		$	345,000
Annual Risk-free Rate		1.75	%		2.47	%
Volatility		117.22	%		115.35	%
Expected Term (years)		1.84			2.34
Convertible Notes Face Value	$	3,254,900		$	3,266,700
Expected annual yield on Regular Notes		28.77	%		28.77	%
Price of the Underlying Stock	$	0.76		$	0.42

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Right of Use Leases Assets and Leases Obligations (Tables)

6 Months Ended

Jun. 30, 2019

Leases [Abstract]

Schedule of operating lease assets and liabilities

	June 30, 2019		December 31, 2018
	US$ thousands		US$ thousands
Operating lease assets	$	685	$	-
Operating lease liabilities:
Current operating lease liabilities	$	216	$	-
Non-current operating lease liabilities	$	516	$	-
Total operating lease liabilities	$	732	$	-

Schedule of weighted average remaining lease term and weighted average discount rate for operating leases

	June 30, 2019
Weighted average remaining lease term (years)		3.7
Weighted average discount rate		6.0	%

Schedule of future minimum lease payments under non-cancelable operating leases

	US$ thousands
July 1, 2019 through December 31, 2019		275
2020		261
2021		136
2022		136
2023		80
Thereafter		-
Total undiscounted future minimum lease payments		888
Less: portion representing imputed interest		(155	)
Total undiscounted future minimum lease payments		733

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Nature of Operations, Basis of Presentation and Going Concern (Details) $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 03, 2013	Dec. 31, 2018 USD ($)	Jun. 30, 2019 USD ($) a	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) a	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)
Nature of Operations, Basis of Presentation and Going Concern (Textual)
Net loss			$ (1,313)	$ (1,241)	$ (3,483)	$ (7,492)
Accumulated deficit		$ (199,115)	$ (202,598)		$ (202,598)		$ (199,115)
Impairment of oil and gas properties							$ 30,906
Megiddo Jezreel License [Member]
Nature of Operations, Basis of Presentation and Going Concern (Textual)
Area of land depth, description	Zion received a multi-year license extension through December 2, 2020.
Area of land, approximate | a			99,000		99,000
Initial length of lease	3 years
Accumulated deficit			$ 3,500		$ 3,500
Impairment of oil and gas properties		$ 30,906
Minimum [Member] | Megiddo Jezreel License [Member]
Nature of Operations, Basis of Presentation and Going Concern (Textual)
Area of land depth, description					The Megiddo Jezreel #1 (“MJ #1”) exploratory well was spud on June 5, 2017 and drilled to a total depth (“TD”) of 5,060 meters (approximately 16,600 feet). Thereafter, the Company successfully cased and cemented the well while awaiting the approval of the testing protocol. The Ministry of Energy approved the well testing protocol on April 29, 2018.
Initial length of lease	1 year
Post-impairment charge			$ 65		$ 228
Maximum [Member] | Megiddo Jezreel License [Member]
Nature of Operations, Basis of Presentation and Going Concern (Textual)
Initial length of lease	7 years

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Summary of Significant Accounting Policies (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended	6 Months Ended		12 Months Ended
		Mar. 31, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Summary of Significant Accounting Policies (Textual)
Common stock equivalents excluded from EPS as the inclusion would be anti-dilutive			9,644,820	9,265,636
Common stock, par value			$ 0.01		$ 0.01
Impairment of unproved oil and gas properties					$ 30,906
Capitalized exploration costs	[1]		$ 7,121		6,714
Post-impairment charge		$ 65	228
Deferred offering costs			$ 50		$ 63

[1] The unproved oil and gas properties balance at June 30, 2019 and at December 31, 2018 contains approximately $136,000 and $2,946,000, respectively, in unpaid amounts.

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Stockholders' Equity (Details) - Employee Stock Option [Member]	6 Months Ended
	Jun. 30, 2019 $ / shares shares
Number of shares
Outstanding, December 31, 2018 | shares	4,788,443
Granted to employees, officers, directors and others | shares	125,000
Expired/Cancelled/Forfeited | shares	(385,693)
Exercised | shares	(52,500)
Outstanding, June 30, 2019 | shares	4,475,250
Exercisable, June 30, 2019 | shares	4,375,250
Weighted Average exercise price
Outstanding, December 31, 2018 | $ / shares	$ 1.37
Granted to employees, officers, directors and others | $ / shares	0.01
Expired/Cancelled/Forfeited | $ / shares	2.07
Exercised | $ / shares	0.01
Outstanding, June 30, 2019 | $ / shares	1.29
Exercisable, June 30, 2019 | $ / shares	$ 1.32

XML

Stockholders' Equity (Details 1) - $ / shares	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
fully vested [Member]
Shares underlying outstanding options
Range of exercise price, lower range	$ 0.01
Range of exercise price, upper range	$ 1.32
Number Outstanding	4,375,250
Weighted Average Exercise price	$ 4.15
fully vested [Member] | Ranges One [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	15,000
Weighted average remaining contractual life (years)	4 years 4 months 13 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Two [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	15,000
Weighted average remaining contractual life (years)	4 years 9 months 3 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Three [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	5,000
Weighted average remaining contractual life (years)	4 years 11 months 12 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Four [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	10,000
Weighted average remaining contractual life (years)	6 years 3 months 4 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Five [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	25,000
Weighted average remaining contractual life (years)	6 years 6 months
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Six [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	305,000
Weighted average remaining contractual life (years)	6 years 11 months 4 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Seven [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	525,000
Weighted average remaining contractual life (years)	7 years 6 months
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Eight [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	10,000
Weighted average remaining contractual life (years)	7 years 6 months 3 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Nine [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	60,000
Weighted average remaining contractual life (years)	7 years 9 months 14 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Ten [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	40,000
Weighted average remaining contractual life (years)	8 years 2 months 30 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Eleven [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	180,000
Weighted average remaining contractual life (years)	8 years 6 months
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Twelve [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	85,000
Weighted average remaining contractual life (years)	8 years 6 months 3 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Thirteen [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	45,000
Weighted average remaining contractual life (years)	8 years 7 months 28 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Fourteen [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	6,000
Weighted average remaining contractual life (years)	8 years 9 months 7 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Fifteen [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	25,000
Weighted average remaining contractual life (years)	9 years 6 months 7 days
Weighted Average Exercise price	$ 0.01
fully vested [Member] | Ranges Sixteen [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.33
Number Outstanding	25,000
Weighted average remaining contractual life (years)	3 years 9 months 29 days
Weighted Average Exercise price	$ 1.33
fully vested [Member] | Ranges Seventeen [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.38
Number Outstanding	108,000
Weighted average remaining contractual life (years)	1 year 6 months 3 days
Weighted Average Exercise price	$ 1.38
fully vested [Member] | Ranges Eighteen [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.38
Number Outstanding	105,307
Weighted average remaining contractual life (years)	5 years 6 months 7 days
Weighted Average Exercise price	$ 1.38
fully vested [Member] | Ranges Nineteen [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.55
Number Outstanding	400,000
Weighted average remaining contractual life (years)	2 years 11 months 4 days
Weighted Average Exercise price	$ 1.55
fully vested [Member] | Ranges Twenty [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.67
Number Outstanding	340,000
Weighted average remaining contractual life (years)	1 year 3 months 4 days
Weighted Average Exercise price	$ 1.67
fully vested [Member] | Ranges Twenty One [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.67
Number Outstanding	405,943
Weighted average remaining contractual life (years)	5 years 3 months 4 days
Weighted Average Exercise price	$ 1.67
fully vested [Member] | Ranges Twenty Two [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.7
Number Outstanding	218,500
Weighted average remaining contractual life (years)	3 years 5 months 23 days
Weighted Average Exercise price	$ 1.7
fully vested [Member] | Ranges Twenty Three [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.75
Number Outstanding	400,000
Weighted average remaining contractual life (years)	4 years 7 days
Weighted Average Exercise price	$ 1.75
fully vested [Member] | Ranges Twenty Four [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.78
Number Outstanding	25,000
Weighted average remaining contractual life (years)	5 years 2 months 8 days
Weighted Average Exercise price	$ 1.78
fully vested [Member] | Ranges Twenty Five [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.87
Number Outstanding	25,000
Weighted average remaining contractual life (years)	2 years 7 months 2 days
Weighted Average Exercise price	$ 1.87
fully vested [Member] | Ranges Twenty Six [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.95
Number Outstanding	25,000
Weighted average remaining contractual life (years)	9 months 3 days
Weighted Average Exercise price	$ 1.95
fully vested [Member] | Ranges Twenty Seven [Member]
Shares underlying outstanding options
Range of exercise price	$ 1.96
Number Outstanding	25,000
Weighted average remaining contractual life (years)	2 months 5 days
Weighted Average Exercise price	$ 1.96
fully vested [Member] | Ranges Twenty Eight [Member]
Shares underlying outstanding options
Range of exercise price	$ 2.03
Number Outstanding	25,000
Weighted average remaining contractual life (years)	1 year 10 months 3 days
Weighted Average Exercise price	$ 2.03
fully vested [Member] | Ranges Twenty Nine [Member]
Shares underlying outstanding options
Range of exercise price	$ 2.31
Number Outstanding	400,000
Weighted average remaining contractual life (years)	4 years 9 months 3 days
Weighted Average Exercise price	$ 2.31
fully vested [Member] | Ranges Thirty [Member]
Shares underlying outstanding options
Range of exercise price	$ 2.61
Number Outstanding	471,500
Weighted average remaining contractual life (years)	2 years 5 months 5 days
Weighted Average Exercise price	$ 2.61
fully vested [Member] | Ranges Thirty One [Member]
Shares underlying outstanding options
Range of exercise price	$ 4.15
Number Outstanding	25,000
Weighted average remaining contractual life (years)	5 years 4 days
Weighted Average Exercise price	$ 4.15
Non-vested [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	100,000
Weighted Average Exercise price	$ 0.01
Non-vested [Member] | Ranges One [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Two [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Three [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Four [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Five [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Six [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Seven [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Eight [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Nine [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Ten [Member]
Shares underlying outstanding options
Range of exercise price	$ 0.01
Number Outstanding	100,000
Weighted average remaining contractual life (years)	9 years 9 months 29 days
Weighted Average Exercise price	$ 0.01
Non-vested [Member] | Ranges Eleven [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twelve [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Thirteen [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Fourteen [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Fifteen [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Sixteen [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Seventeen [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Eighteen [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Nineteen [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty One [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Two [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Three [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Four [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Five [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Six [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Seven [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Eight [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Twenty Nine [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Non-vested [Member] | Ranges Thirty One [Member]
Shares underlying outstanding options
Range of exercise price
Number Outstanding
Weighted Average Exercise price
Employee Stock Option [Member]
Shares underlying outstanding options
Weighted Average Exercise price	$ 1.29	$ 1.37

XML

Stockholders' Equity (Details 2) - $ / shares	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of underlying stock at grant date		$ 3.37
Dividend yields
Expected volatility
Risk-free interest rates
Expected lives (in years)		10 years
Weighted-average grant date fair value		$ 3.36
Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average fair value of underlying stock at grant date	$ 0.53	$ 2.34
Dividend yields
Weighted-average grant date fair value	$ 0.52	$ 1.73
Minimum [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		73.00%
Risk-free interest rates		2.46%
Minimum [Member] | Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	87.00%	68.00%
Risk-free interest rates	2.31%	2.01%
Expected lives (in years)	5 years	3 years
Maximum [Member] | Non-employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility		76.00%
Risk-free interest rates		2.81%
Maximum [Member] | Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	88.00%	75.00%
Risk-free interest rates	2.53%	2.58%
Expected lives (in years)	5 years 4 months 2 days	5 years 6 months

XML

Stockholders' Equity (Details 3) - Warrants and Options [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Non Employee [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost of warrant and option issuances		$ 302
Employees and Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost of warrant and option issuances	40	1,279
Oil and Gas Properties [Member] | Employees and Non Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost of warrant and option issuances		$ 328

XML

Stockholders' Equity (Details 4)	6 Months Ended
	Jun. 30, 2019 $ / shares
ZNWAD Warrants [Member]
Class of Warrant or Right [Line Items]
Exercise Price	$ 1.00
Investor [Member] | ZNWAA Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAA Warrants	[1],[2]
Exercise Price	$ 2.00	[1],[2]
Expiration Date	Jan. 31, 2021	[1],[2]
Investor [Member] | ZNWAA Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Mar. 03, 2013	[1],[2]
Investor [Member] | ZNWAA Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Dec. 31, 2014	[1],[2]
Investor [Member] | ZNWAD Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAD Warrants	[1],[2],[3]
Exercise Price	$ 1.00	[2]
Expiration Date	May 02, 2021
Investor [Member] | ZNWAD Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Jan. 01, 2015	[1],[2],[3]
Investor [Member] | ZNWAD Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Mar. 31, 2016	[1],[2],[3]
Investor [Member] | ZNWAE Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAE Warrants	[1],[2]
Exercise Price	$ 1.00	[2]
Expiration Date	May 01, 2021	[1],[2]
Investor [Member] | ZNWAE Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Nov. 01, 2016	[2],[3]
Investor [Member] | ZNWAE Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Mar. 31, 2017	[2],[3]
Investor [Member] | ZNWAF Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAF Warrants	[1],[2],[3]
Exercise Price	$ 1.00	[1],[2],[3]
Expiration Date	Aug. 14, 2021	[1],[2],[3]
Investor [Member] | ZNWAF Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	May 01, 2017	[1],[2],[3]
Investor [Member] | ZNWAF Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Jul. 31, 2017
Investor [Member] | ZNWAG Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAG Warrants	[2]
Exercise Price	$ 1.00	[2]
Expiration Date	Jan. 08, 2021	[2]
Investor [Member] | ZNWAG Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Oct. 01, 2017	[2]
Investor [Member] | ZNWAG Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Dec. 31, 2017	[2]
Investor [Member] | ZNWAH Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAH Warrants	[1],[2],[3]
Period of Grant	Feb. 28, 2018	[1],[2],[3]
Exercise Price	$ 5.00	[1],[2],[3]
Expiration Date	Apr. 02, 2021	[1],[2],[3]
Investor [Member] | ZNWAI Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAI Warrants	[1],[2],[3]
Exercise Price	$ 3.00	[1],[2],[3]
Expiration Date	Feb. 28, 2018	[1],[2],[3]
Investor [Member] | ZNWAI Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Apr. 01, 2018	[1],[2],[3]
Investor [Member] | ZNWAI Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	May 31, 2018
Investor [Member] | ZNWAJ Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAJ Warrants	[1],[2]
Exercise Price	$ 1.00	[1],[2]
Expiration Date	Oct. 29, 2021	[1],[2]
Investor [Member] | ZNWAJ Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Aug. 31, 2018	[1],[2]
Investor [Member] | ZNWAJ Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Sep. 30, 2018	[1],[2]
Investor [Member] | ZNWAK Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAK Warrants	[1],[2]
Exercise Price	$ 0.01	[1],[2]
Expiration Date	Feb. 25, 2021
Investor [Member] | ZNWAK Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Dec. 01, 2018	[1],[2]
Investor [Member] | ZNWAK Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Jan. 31, 2019	[1],[2]
Investor [Member] | ZNWAL Warrants [Member]
Class of Warrant or Right [Line Items]
Name	ZNWAL Warrants	[2]
Exercise Price	$ 2.00	[2]
Expiration Date	Aug. 26, 2021	[2]
Investor [Member] | ZNWAL Warrants [Member] | Beginning Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Jul. 01, 2019	[2]
Investor [Member] | ZNWAL Warrants [Member] | Ending Date [Member]
Class of Warrant or Right [Line Items]
Period of Grant	Aug. 31, 2019	[2]

[1] On May 29, 2019, the Company extended the termination date of the Warrants by one (1) year.

[2] Zion's ZNWAB Warrants expired on May 2, 2017, and the ZNWAC Warrants expired on May 2, 2018.

[3] On December 4, 2018, the Company extended the termination date of the Warrants by one (1) year.

XML

Stockholders' Equity (Details 5)	6 Months Ended
	Jun. 30, 2019 $ / shares shares
Class of Warrant or Right [Line Items]
Outstanding warrants, Beginning Balance	6,046,540
Warrants Issued	673,600
Warrants Exercised	(199,570)
Warrants Expired	0
Outstanding warrants, Ending Balance	6,520,570
ZNWAD [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 1.00
Outstanding warrants, Ending Balance	243,853
Warrant Transactions [Member] | ZNWAA [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 2.00
Warrant Termination Date	Jan. 31, 2021
Outstanding warrants, Beginning Balance	1,498,804
Warrants Issued	0
Warrants Exercised	0
Warrants Expired	0
Outstanding warrants, Ending Balance	1,498,804
Warrant Transactions [Member] | ZNWAD [Member]
Class of Warrant or Right [Line Items]
Warrant Termination Date	May 02, 2021
Outstanding warrants, Beginning Balance	243,853
Warrants Issued	0
Warrants Exercised	0
Warrants Expired	0
Warrant Transactions [Member] | ZNWAE [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 1.00
Warrant Termination Date	May 02, 2021
Outstanding warrants, Beginning Balance	2,144,510
Warrants Issued	0
Warrants Exercised	(40)
Warrants Expired	0
Outstanding warrants, Ending Balance	2,144,470
Warrant Transactions [Member] | ZNWAF [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 1.00
Warrant Termination Date	Aug. 14, 2021
Outstanding warrants, Beginning Balance	359,610
Warrants Issued	0
Warrants Exercised	0
Warrants Expired	0
Outstanding warrants, Ending Balance	359,610
Warrant Transactions [Member] | ZNWAG [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 1.00
Warrant Termination Date	Jan. 08, 2021
Outstanding warrants, Beginning Balance	240,578
Warrants Issued	0
Warrants Exercised	0
Warrants Expired	0
Outstanding warrants, Ending Balance	240,578
Warrant Transactions [Member] | ZNWAI [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 3.00
Warrant Termination Date	Jun. 29, 2021
Outstanding warrants, Beginning Balance	640,735
Warrants Issued	0
Warrants Exercised	(5)
Warrants Expired	0
Outstanding warrants, Ending Balance	640,730
Warrant Transactions [Member] | ZNWAH [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 5.00
Warrant Termination Date	Apr. 19, 2021
Outstanding warrants, Beginning Balance	372,400
Warrants Issued	0
Warrants Exercised	0
Warrants Expired	0
Outstanding warrants, Ending Balance	372,400
Warrant Transactions [Member] | ZNWAJ [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 1.00
Warrant Termination Date	Oct. 29, 2021
Outstanding warrants, Beginning Balance	546,050
Warrants Issued	0
Warrants Exercised	(25)
Warrants Expired	0
Outstanding warrants, Ending Balance	546,025
Warrant Transactions [Member] | ZNWAK [Member]
Class of Warrant or Right [Line Items]
Exercise Price | $ / shares	$ 0.01
Warrant Termination Date	Feb. 25, 2021
Outstanding warrants, Beginning Balance	0
Warrants Issued	673,600
Warrants Exercised	(199,500)
Warrants Expired	0
Outstanding warrants, Ending Balance	474,100

XML

Stockholders' Equity (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
2011 Equity Incentive Plan [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)	14,000
Exercise price per unit	$ 0.01
Fair value of stock options granted	$ 62
Stock option plan, expiration date	Apr. 05, 2028
2011 Non-Employee Directors Stock Option Plan [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)	25,000
Exercise price per unit	$ 1.78
Fair value of stock options granted	$ 10
23 senior officers, staff members and consultants [Member] | 2011 Equity Incentive Plan [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)	330,000
Exercise price per unit	$ 0.01
Fair value of stock options granted	$ 759
Stock option plan, expiration date	Jan. 01, 2028
23 senior officers, staff members and consultants [Member] | 2011 Equity Incentive Plan [Member] | June 30, 2018 [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)		165,000
23 senior officers, staff members and consultants [Member] | 2011 Equity Incentive Plan [Member] | December 31, 2018 [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)			165,000
Five senior officers [Member] | 2011 Equity Incentive Plan [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)	110,000
Exercise price per unit	$ 0.01
Fair value of stock options granted	$ 250
Stock option plan, expiration date	Jan. 04, 2028
Three consultants [Member] | 2011 Equity Incentive Plan [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)	55,000
Exercise price per unit	$ 0.01
Fair value of stock options granted	$ 222
Stock option vested, description	The options vested upon grant. However, the exercisability of these options is according to the following schedule: (a) 27,500 options are exercisable on June 30, 2018 and (b) the remaining 27,500 options are exercisable on June 30, 2019.
Eight Board Members [Member] | 2011 Non-Employee Directors Stock Option Plan [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)	400,000
Exercise price per unit	$ 2.31
Fair value of stock options granted	$ 428
Stock option plan, expiration date	Jan. 01, 2024
One Senior Officer [Member] | 2011 Equity Incentive Plan [Member]
Stockholders' Equity (Textual)
Shares purchased under option plan (in share)	100,000
Exercise price per unit	$ 0.01
Fair value of stock options granted	$ 55
Stock option plan, expiration date	May 01, 2029
Stock option vested, description	However, the vesting and exercisability of these options is subject to the following schedule: (a) 50,000 options vest on September 1, 2019 and (b) the remaining 50,000 options vest on January 1, 2020.
Senior Officer One [Member] | 2011 Equity Incentive Plan [Member] | June 30, 2018 [Member]
Stockholders' Equity (Textual)
Exercise price per unit	$ 0.01
Fair value of stock options granted		$ 10,000
Stock option plan, expiration date		Jun. 01, 2029

XML

Stockholders' Equity (Warrants and Options) (Details Textual 1) - USD ($) $ / shares in Units, $ in Thousands				1 Months Ended		3 Months Ended		6 Months Ended
	May 29, 2019	Dec. 10, 2018	Dec. 04, 2018	May 29, 2019	Jun. 29, 2018	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Feb. 25, 2019	Jan. 13, 2015
Stockholders' Equity (Textual)
Unrecognized compensation cost related to non vested stock						$ 35		$ 35
Subscription rights offering, description								Each shareholder received .10 (one tenth) of a subscription right (i.e. one subscription right for each 10 shares owned) for each share of the Company's Common Stock owned on the Record Date.
ZNWAG [Member] | Unit Option Program [Member]
Stockholders' Equity (Textual)
Warrants termination, description								The warrants became exercisable on January 8, 2018 and continue to be exercisable through January 8, 2021 at a per share exercise price of $1.00. The warrant terms provide that if the Company's Common Stock trades above $5.00 per share as the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company has the sole discretion to accelerate the termination date of the warrant upon providing 60 days advanced notice to the warrant holders.
New unit program, description								The Unit Option consisted of Units of our securities where each Unit (priced at $250.00 each) was comprised of (i) 50 shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional 50 shares of Common Stock. The investor's Plan account was credited with the number of shares of the Company's Common Stock acquired under the Units purchased. Each warrant affords the investor the opportunity to purchase one share of Company Common Stock at a warrant exercise price of $5.00.
Znwah [Member] | Unit Option Program [Member]
Stockholders' Equity (Textual)
Warrants termination, description								The warrants became exercisable on April 2, 2018 and continue to be exercisable through April 2, 2020 at a per share exercise price of $5.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of April 2, 2019 to April 2, 2020.   On May 29, 2019, the Company extended the termination date of the ZNWAH Warrant by one (1) year from the expiration date of April 2, 2020 to April 2, 2021.
Znwaj Warrants [Member] | Unit Option Program [Member]
Stockholders' Equity (Textual)
Warrants termination, description								The warrants became exercisable on October 29, 2018 and continue to be exercisable through October 29, 2020 at a per share exercise price of $1.00, after the Company, on December 4, 2018, extended the termination date of the Warrant by one (1) year from the expiration date of October 29, 2019 to October 29, 2020.
New unit program, description								The Unit Option consisted of Units of the Company's securities where each Unit (priced at $250.00 each) was comprised of (i) a certain number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company's publicly traded common stock as reported on the NASDAQ on the Unit Purchase Date and (ii) Common Stock purchase warrants to purchase an additional twenty-five (25) shares of Common Stock. The investor's Plan account was credited with the number of shares of the Company's Common Stock acquired under the Units purchased. Each warrant affords the investor the opportunity to purchase one share of Company Common Stock at a warrant exercise price of $1.00.
Subscription Rights Offering [Member]
Stockholders' Equity (Textual)
Subscription rights offering, description								On April 2, 2018 the Company announced an offering ("2018 Subscription Rights Offering") through American Stock Transfer & Trust Company, LLC (the "Subscription Agent"), at no cost to the shareholders, of non-transferable Subscription Rights to purchase Rights (each "Right" and collectively, the "Rights") of its securities to persons who owned shares of our Common Stock on April 13, 2018 ("the Record Date"). Pursuant to the 2018 Subscription Rights Offering, each holder of shares of common stock on the Record Date received non-transferable rights to subscribe for Rights, with each Right comprised of one share of the Company Common Stock, par value $0.01 per share (the "Common Stock") and one Common Stock Purchase Warrant to purchase an additional one share of Common Stock. Each Right could be purchased at a per Right subscription price of $5.00. Each Warrant affords the investor the opportunity to purchase one share of the Company Common Stock at a warrant exercise price of $3.00. The warrant is referred to as "ZNWAI."
Proceeds from the sale of the rights								$ 3,038
Expenses from rights offering								$ 243
Znwad Warrants [Member]
Stockholders' Equity (Textual)
Purchase warrants unit price						$ 1.00		$ 1.00
Warrant [Member]
Stockholders' Equity (Textual)
Exercise price per unit					$ 3.00
Expiration date					June 29, 2019 to June 29, 2020
Warrant [Member] | Unit Option Program [Member]
Stockholders' Equity (Textual)
Purchase warrants unit price						1.00		$ 1.00
New unit program, description								This Unit Option Program enabled participants to purchase Units of the Company's securities where each Unit (priced at $250.00 each) was comprised of (i) a certain number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company's Common Stock as reported on the NASDAQ on the unit purchase date and (ii) Common Stock purchase warrants to purchase an additional 15 shares of Common Stock at a warrant exercise price of $1.00 per share.
Warrant [Member] | New Unit Program [Member]
Stockholders' Equity (Textual)
Purchase warrants unit price											$ 4.00
Exercise price per unit											$ 1.00
New unit program, description								This New Unit Program enabled participants to purchase Units of the Company's securities where each Unit (priced at $250.00 each) was comprised of (i) the number of shares of Common Stock determined by dividing $250.00 (the price of one Unit) by the average of the high and low sale prices of the Company's Common Stock as reported on the NASDAQ on the unit purchase date and (ii) Common Stock purchase warrants to purchase an additional 25 shares of Common Stock at a warrant exercise price of $1.00 per share.
Warrant [Member] | ZNWAF [Member]
Stockholders' Equity (Textual)
Exercise price per unit						$ 1.00		$ 1.00
Warrants termination, description								All ZNWAF warrants became exercisable on August 14, 2017 and continue to be exercisable through August 14, 2020 at a per share exercise price of $1.00.   On May 29, 2019, the Company extended the termination date of the ZNWAF Warrant by one (1) year from the expiration date of August 14, 2020 to August 14, 2021. The warrant terms provide that if the Company's Common Stock trades above $5.00 per share as the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company has the sole discretion to accelerate the termination date of the warrant upon providing 60 days advanced notice to the warrant holders.
Warrant [Member] | Znwaj Warrants [Member]
Stockholders' Equity (Textual)
Expiration date	October 29, 2020 to October 29, 2021
Warrant [Member] | Znwad Warrants [Member]
Stockholders' Equity (Textual)
Expiration date	May 2, 2020 to May 2, 2021		May 2, 2019 to May 2, 2020
Warrant [Member] | Znwak Warrants [Member]
Stockholders' Equity (Textual)
Warrants termination, description		On December 10, 2018, the Company initiated another Unit Option and it terminated on January 23, 2019. The Unit Option consisted of Units of the Company's securities where each Unit (priced at $250.00 each) is comprised of (i) two hundred and fifty (250) shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional two hundred and fifty (250) shares of Common Stock at a per share exercise price of $0.01. The investor's Plan account was credited with the number of shares of the Company's Common Stock and Warrants that are acquired under the Units purchased. Each warrant affords the participant the opportunity to purchase one share of our Common Stock at a warrant exercise price of $0.01. The warrant is referred to as "ZNWAK."
Expiration date				expiration date of February 25, 2020 to February 25, 2021.
Warrant [Member] | Znwal Warrants [Member]
Stockholders' Equity (Textual)
Expiration date								The Unit Option consists of Units of the Company's securities where each Unit (priced at $250.00 each) is comprised of (i) two hundred and fifty (250) shares of Common Stock and (ii) Common Stock purchase warrants to purchase an additional fifty (50) shares of Common Stock at a per share exercise price of $2.00. The investor's Plan account will be credited with the number of shares of the Company's Common Stock and Warrants that are acquired under the Units purchased. For Plan participants who enroll into the Unit Program with the purchase of at least one Unit and also enroll in the separate Automatic Monthly Investments ("AMI") program at a minimum of $50.00 per month or more, will receive an additional twenty-five (25) warrants at an exercise price of $2.00 during this Unit Option Program. The twenty-five (25) additional warrants are for enrolling into the AMI program. Existing subscribers to the AMI are entitled to the additional twenty-five (25) warrants once, if they purchase at least one (1) unit during the Unit program. Each warrant affords the participant the opportunity to purchase one share of our Common Stock at a warrant exercise price of $2.00. The warrant is referred to as "ZNWAL."
Net proceeds under the DSPP program						3,108	2,118	5,636	5,953
Dividend Reinvestment and Stock Purchase Plan [Member]
Stockholders' Equity (Textual)
Exercise price per unit										$ 0.01
Unit option, description								On November 1, 2016, the Company launched a unit offering (the "Unit Program") under the Company's DSPP pursuant to which participants could purchase units comprised of seven shares of Common Stock and seven Common Stock purchase warrants, at a per unit purchase price of $10.
Warrants termination, description								The warrants became exercisable on May 2, 2016 and, in the case of ZNWAB continued to be exercisable through May 2, 2017 (1 year) and, in the case of ZNWAC continued to be exercisable through May 2, 2018 for ZNWAC (2 years) and May 2, 2019 for ZNWAD (3 years), respectively, at a per share exercise price of $1.00.
Dividend Reinvestment and Stock Purchase Plan [Member] | Warrant [Member]
Stockholders' Equity (Textual)
Warrants termination, description								The ZNWAE warrants became exercisable on May 1, 2017 and continue to be exercisable through May 1, 2020 at a per share exercise price of $1.00. On May 29, 2019, the Company extended the termination date of the ZNWAE Warrant by one (1) year from the expiration date of May 1, 2020 to May 1, 2021. The warrant terms provide that if the Company's Common Stock trades above $5.00 per share at the closing price for 15 consecutive trading days at any time prior to the expiration date of the warrant, the Company may, in its sole discretion, accelerate the termination of the warrant upon providing 60 days advanced notice to the warrant holders.
Non Employee Directors Stock Option Plan [Member]
Stockholders' Equity (Textual)
Exercise price per unit						$ 1.78		$ 1.78
Non Employee Directors Stock Option Plan [Member] | Eight Board Members [Member]
Stockholders' Equity (Textual)
Exercise price per unit						2.31		2.31
Stock Option Plan Twenty Eleven [Member]
Stockholders' Equity (Textual)
Exercise price per unit						0.01		0.01
Stock Option Plan Twenty Eleven [Member] | Senior Officers Staff Members And Consultants [Member]
Stockholders' Equity (Textual)
Exercise price per unit						0.01		0.01
Stock Option Plan Twenty Eleven [Member] | Senior Officer [Member]
Stockholders' Equity (Textual)
Exercise price per unit						0.01		0.01
Stock Option Plan Twenty Eleven [Member] | Consultant [Member]
Stockholders' Equity (Textual)
Exercise price per unit						$ 0.01		$ 0.01

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Unproved Oil and Gas Properties, Full Cost Method (Details) - USD ($) $ in Thousands		6 Months Ended		12 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Excluded from amortization base:
Drilling costs, and other operational related costs		$ 1,243		$ 1,242
Capitalized salary costs		1,668		1,579
Capitalized interest costs		715		677
Legal costs, license fees and other preparation costs		3,484		3,216
Other costs		11
Total unproved oil and gas properties, full cost method	[1]	7,121		$ 6,714
Oil and Gas Properties [Member]
Excluded from amortization base:
Drilling costs, and other operational related costs		159
Other costs		69
Total unproved oil and gas properties, full cost method		$ 228

[1] The unproved oil and gas properties balance at June 30, 2019 and at December 31, 2018 contains approximately $136,000 and $2,946,000, respectively, in unpaid amounts.

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Unproved Oil and Gas Properties, Full Cost Method (Details 1) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
Excluded from amortization base:
Drilling costs, and other operational related costs		$ 1	$ 7,326
Capitalized salary costs		89	423
Capitalized interest costs		38	156
Legal costs, license fees and other preparation costs		268	596
Other costs		11	143
Changes in unproved oil and gas properties	[1]	$ 407	$ 8,644

[1] Inclusive of non-cash amounts of approximately $174,000 and $3,872,000 during the six months ended June 30, 2019, and 2018, respectively.

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Unproved Oil and Gas Properties, Full Cost Method (Details Textual) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Unproved Oil and Gas Properties, Full Cost Method (Textual)
Inclusive of non-cash amounts	$ 174	$ 3,872
Unproved oil and gas properties unpaid amount	$ 136		$ 2,946

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Senior Convertible Bonds (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Senior Convertible Bonds [Abstract]
10% Senior Convertible Bonds, on the day of issuance	$ 3,470	$ 3,470
Unamortized Debt discount, net	(8,060)	(993)
Bonds converted to shares	(216)	(203)
Offering cost, net	(50)	(63)
10% senior Convertible bonds - Long Term Liability	$ 2,398	$ 2,211

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Senior Convertible Bonds (Details Textual) $ / shares in Units, $ in Thousands			3 Months Ended		6 Months Ended
	May 02, 2016 USD ($)	Oct. 21, 2015 $ / shares	Jun. 30, 2019 USD ($) $ / shares	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($) Bonds $ / shares shares	Jun. 30, 2018 USD ($)	Dec. 31, 2018 USD ($)	May 02, 2018
Senior Convertible Bonds (Textual)
Interest expense			$ 54	$ 0	$ 111	$ 0
Convertible bonds			3,470		3,470		$ 3,470
Principal amount			32,549		32,549		32,667
Unamortized Debt discount, net			$ (8,060)		$ (8,060)		$ (993)
Average Company stock price | $ / shares			$ 0.774		$ 0.774
Stock issued to bondholders | shares					422,426
Debt discount on derivative liability			$ 1,626		$ 1,626
Convertible Debt [Member]
Senior Convertible Bonds (Textual)
Debt instrument, maturity date					May 02, 2021
Debt instrument payment description					Payable annually in arrears on May 2 of each year, commencing May 2, 2017.
Senior unsecured notes interest rate			10.00%		10.00%			10.00%
Debt conversion, description					At any time prior to the close of business on the business day immediately preceding April 2, 2021, holders may convert their notes into Common Stock at the conversion rate of 44 shares per $100 bond (which is equivalent to a conversion rate of approximately $2.27 per share).
Amortization expense					$ 13
Convertible bonds			$ 1,844		1,844
Principal amount			3,470		3,470
Unamortized Debt discount, net			$ 187		187
Financing gains associated notes converted to shares					$ 10
Convertible Debt [Member] | Debt Issue [Member]
Senior Convertible Bonds (Textual)
Debt instrument payment description					The interest was paid-in-kind ("PIK") in the form of Common Stock. An average of the Company stock price of $0.774 was determined based on the 30 trading days prior to the record date of April 18, 2019. This figure was used to divide into 10% of the par value of the bonds held by the holders. The Company issued 422,426 shares to the accounts of its bondholders.
IPO [Member]
Senior Convertible Bonds (Textual)
Debt instrument, maturity date		May 02, 2021
Convertible bonds purchase price | $ / shares		$ 100
Senior unsecured notes interest rate		10.00%
Debt conversion, description					Under the rights offering, the Company distributed at no cost, 360,000 non-transferable subscription rights to subscribe for, on a per right basis, two 10% Convertible Senior Bonds par $100 due May 2, 2021 (the "Notes"), to shareholders of the Company's Common Stock on October 15, 2015, the record date for the offering. Each whole subscription right entitled the participant to purchase two convertible bonds at a purchase price of $100 per bond.
Principal amount	$ 3,470
Expenses from rights offering	136
Net proceeds from sale of the Notes	$ 3,334
IPO [Member] | Convertible Debt [Member]
Senior Convertible Bonds (Textual)
Debt instrument, maturity date					May 02, 2021
Debt instrument payment description					The number of shares for the payment of interest in shares of Common Stock, in lieu of the cash amount, will be based on the average of the closing prices of the Company's Common Stock as reported by Bloomberg L.P. for the 30 trading days preceding the record date for the payment of interest; such record date has been designated and will always be the 10th business day prior to the interest payment date on May 2 of each year. The number of shares for the payment of principal, in lieu of the cash amount, shall be based upon the average of the closing price of the Company's Common Stock as reported by Bloomberg L.P. for the 30 trading days preceding the principal repayment date; such record date has been designated as the trading day immediately prior to the 30-day period preceding the maturity date of May 2, 2021.
Description of note redeemption					The Company was entitled to redeem for cash the outstanding Notes at an amount equal to the principal and accrued and unpaid interest, plus a 10% premium.
Senior unsecured notes interest rate								10.00%
IPO [Member] | Convertible Debt [Member] | Debt Issue [Member]
Senior Convertible Bonds (Textual)
Convertible bonds purchase price | $ / shares			$ 2.27		$ 2.27
Interest expense			$ 28	$ 71	$ 38	$ 156
Number of convertible bonds | Bonds					122
Convertible bond price					$ 1
Common stock issued | shares					5,368
Financial gains					$ 10

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Derivative Liability (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Option, Qualitative Disclosures Related to Election [Abstract]
Fair value of derivative liability	$ 263	$ 345
Level 3 [Member]
Fair Value, Option, Qualitative Disclosures Related to Election [Abstract]
Fair value of derivative liability	$ 263	$ 345

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Derivative Liability (Details 1) $ in Thousands	6 Months Ended
	Jun. 30, 2019 USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative liability fair value, beginning balance	$ 345
Gain on derivative liability	(82)
Derivative liability fair value, ending balance	$ 263

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Derivative Liability (Details 2) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Convertible Option Fair Value of approximately	$ 263	$ 345
Annual Risk-free Rate	1.75%	2.47%
Volatility	117.22%	115.35%
Expected Term (years)	1 year 10 months 3 days	2 years 4 months 2 days
Convertible Notes Face Value	$ 32,549	$ 32,667
Expected annual yield on Regular Notes	28.77%	28.77%
Price of the Underlying Stock	$ 0.76	$ 0.42

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Derivative Liability (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Derivative Liability (Textual)
Gain on derivative liability	$ 460	$ 968	$ 82	$ (2,566)

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Right of Use Leases Assets and Leases Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Operating lease assets	$ 685
Operating lease liabilities:
Current operating lease liabilities	216
Non-current operating lease liabilities	516
Total operating lease liabilities	$ 732

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Right of Use Leases Assets and Leases Obligations (Details 1)	Jun. 30, 2019
Leases [Abstract]
Weighted average remaining lease term (years)	3 years 8 months 12 days
Weighted average discount rate	6.00%

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Right of Use Leases Assets and Leases Obligations (Details 2) $ in Thousands	Jun. 30, 2019 USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
July 1, 2019 through December 31, 2019	$ 275
2020	261
2021	136
2022	136
2023	80
Thereafter
Total undiscounted future minimum lease payments	888
Less: portion representing imputed interest	(155)
Total undiscounted future minimum lease payments	$ 733

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Right of Use Leases Assets and Leases Obligations (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating lease costs	$ 64	$ 132
Operating lease liabilities	$ 68	139
Right-of-use assets obtained in exchange for new operating lease liabilities		$ 819

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Commitments and Contingencies (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Commitments and Contingencies (Textual)
Bank guarantees to government bodies	$ 1,010
Bank guarantees to others	85
Aggregate guarantee amount	1,095
Advanced deposit	500
Restricted cash	$ 4,180	$ 4,125	$ 7,388	$ 9,079
Cash and cash equivalents weighted average interest rate	0.13%
Foreign currency exchange rate risks, description	During the period January 1, 2019 through June 30, 2019, the USD has fluctuated by approximately 4.9% against the NIS (the USD has weakened relative to the NIS). By contrast, during the period January 1, 2018 through December 31, 2018, the USD fluctuated by approximately 8.1% against the NIS (the USD strengthened relative to the NIS). Continued weakening of the US dollar against the NIS will result in higher operating costs from NIS denominated expenses. To date, we have not hedged any of our currency exchange rate risks, but we may do so in the future.

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended
	Jul. 31, 2019	Jun. 30, 2019
July 1, 2019 [Member] | One senior officer [Member]
Subsequent Events (Textual)
Shares purchased under option plan (in share)		100,000
Exercise price per unit		$ 0.01
Fair value of stock options granted		$ 35,000
Stock option plan, expiration date		Jul. 01, 2029
Subsequent Events [Member]
Subsequent Events (Textual)
Amount collected from DSPP	$ 379