CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities:
Net Income	$ 3,659	$ 14,665
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion on discounted liabilities	36,156	37,729
Gain on sale of properties	(4,574)	(3,662)
Unrealized loss (gain) on derivative instruments	2,777	(5,330)
Provision for deferred income taxes	3,096	7,866
Changes in assets and liabilities:
Accounts receivable	601	2,000
Due to related parties	(5)	(60)
Inventories		11
Prepaid expenses and other assets	15	(1,226)
Accounts payable	(2,919)	(15,063)
Accrued liabilities	(11,595)	2,136
Net Cash Provided by Operating Activities	27,211	39,066
Cash Flows from Investing Activities:
Capital expenditures, including exploration expense	(18,046)	(47,073)
Proceeds from sale of properties and equipment	4,579	3,233
Net Cash Used in by Investing Activities	(13,467)	(43,840)
Cash Flows from Financing Activities:
Purchase of stock for treasury	(5,488)	(7,956)
Purchase of non-controlling interests	(499)	(65)
Increase in long-term bank debt and other long-term obligations	25,000	55,800
Repayment of long-term bank debt and other long-term obligations	(37,745)	(42,048)
Distribution to non-controlling interest	(312)	(3,080)
Net Cash (used in) provided by Financing Activities	(19,044)	2,651
Cash and Cash Equivalents Period Decrease	(5,300)	(2,123)
Cash and Cash Equivalents at the Beginning of the Year	6,315	8,438
Cash and Cash Equivalents at the End of the Year	1,015	6,315
Supplemental Disclosures:
Income taxes paid during the year	65	2,130
Interest paid during the year	$ 3,659	$ 3,535