EX-99.1

Report of Independent Registered Accounting Firm

To the Partners
Oxy Vinyls, LP:

We have audited the accompanying consolidated balance sheets of Oxy Vinyls, LP and subsidiaries (the Partnership) as of June 30, 2007 and December 31, 2006, and the related consolidated statements of operations, changes in partners’ capital, and cash flows for the six months ended June 30, 2007 and each of the years in the two-year period ended December 31, 2006. These consolidated financial statements are the responsibility of the Partnership’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits.

We conducted our audits in accordance with the auditing standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. The Partnership is not required to have, nor were we engaged to perform an audit of its internal control over financial reporting. Our audit included consideration of internal control over financial reporting as a basis for designing audit procedures that are appropriate in the circumstances, but not for the purpose of expressing an opinion on the effectiveness of the Partnership’s internal control over financial reporting. Accordingly, we express no such opinion. An audit also includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion.

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the financial position of Oxy Vinyls, LP and subsidiaries as of June 30, 2007 and December 31, 2006, and the results of their operations and their cash flows for the six months ended June 30, 2007 and each of the years in the two-year period ended December 31, 2006 in conformity with U.S. generally accepted accounting principles.

As explained in Note 3 to the consolidated financial statements, effective January 1, 2007, the Partnership changed its method of accounting for planned major maintenance activities. Also, as explained in Note 3, the Partnership changed its method of accounting for defined benefit pension and other postretirement plans effective December 31, 2006 and for share-based payments effective July 1, 2005.

KPMG LLP

Dallas, TX
February 29, 2008

OXY VINYLS, LP AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

June 30, 2007 and December 31, 2006

(Amounts in thousands)


	June 30,		December 31,
	2007		2006
ASSETS

CURRENT ASSETS:
Cash and cash equivalents	$	12,469	$	517
Trade receivables		296,293		223,925
Other receivables		2,272		6,432
Receivable from PolyOne Corporation, net		29,937		17,330
Inventories		134,316		130,171
Prepaid expenses		3,953		3,998

Total current assets		479,240		382,373

PROPERTY, PLANT AND EQUIPMENT, net		1,216,870		1,242,555

OTHER ASSETS, net		43,837		50,618


	$	1,739,947	$	1,675,546


LIABILITIES AND PARTNERS’ CAPITAL

CURRENT LIABILITIES:
Current maturities of long-term debt	$	6,785	$	24,750
Current maturities of loans payable to Occidental Petroleum Investment Co.		208,023		8,982
Accounts payable		133,185		109,029
Accrued property taxes		8,249		15,815
Other accrued liabilities		21,440		54,504
Current foreign income taxes payable		457		400
Payable to Occidental Chemical Corporation, net		44,529		25,307

Total current liabilities		422,668		238,787

LONG-TERM DEBT, net of current maturities		—		6,721

LOANS PAYABLE TO OCCIDENTAL PETROLEUM INVESTMENT CO., net of current maturities		—		115,890

POSTRETIREMENT BENEFIT OBLIGATIONS		46,288		43,032

ASSET RETIREMENT OBLIGATIONS		6,556		6,344

DEFERRED CREDITS AND OTHER LIABILITIES		7,573		8,170

FOREIGN INCOME TAX LIABILITY		1,443		—

COMMITMENTS AND CONTINGENCIES (NOTE 9)

MINORITY INTEREST IN OXYMAR		117,994		114,442

PARTNERS’ CAPITAL, INCLUDING ACCUMULATED OTHER COMPREHENSIVE LOSS		1,137,425		1,142,160


	$	1,739,947	$	1,675,546

The accompanying notes are an integral part of these consolidated financial statements.

OXY VINYLS, LP AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

For the Six Months Ended June 30, 2007 and the Years Ended December 31, 2006 and 2005

(Amounts in thousands)


	Six Months Ended			Year Ended			Year Ended
	6/30/2007			12/31/2006			12/31/2005
REVENUES:

Net sales	$	1,107,393		$	2,475,996		$	2,501,986

COSTS AND OTHER DEDUCTIONS:

Cost of sales		1,087,327			2,189,337			2,170,347

Selling, general and administrative and other operating expenses, net		9,400			30,757			26,609

Restructuring and asset writedowns		—			—			104,686

Gain on sale of assets		(887	)		(18,899	)		—

Interest expense, net		6,275			16,472			26,741


INCOME FROM OPERATIONS BEFORE MINORITY INTEREST AND TAXES		5,278			258,329			173,603

Minority interest		3,552			8,081			36,701


INCOME FROM OPERATIONS BEFORE TAXES		1,726			250,248			136,902

Provision for income taxes		3,773			4,079			2,921


NET (LOSS) INCOME		(2,047	)		246,169			133,981

Other comprehensive loss on postretirement liability adjustment		(2,688	)		—			—


COMPREHENSIVE (LOSS) INCOME	$	(4,735	)	$	246,169		$	133,981

The accompanying notes are an integral part of these consolidated financial statements.

OXY VINYLS, LP AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CHANGES IN PARTNERS’ CAPITAL

For the Six Months Ended June 30, 2007 and the Years Ended December 31, 2006 and 2005

(Amounts in thousands)


	Occidental						Occidental						1999 PVC
	PVC LP Inc.						PVC LLC						Partner Inc.						Total
																			Partners’ Capital &
				Accumulated						Accumulated						Accumulated			Accumulated
				Other						Other						Other			Other
	Partner’s			Comprehensive			Partner’s			Comprehensive			Partner’s			Comprehensive			Comprehensive
	Capital			Loss			Capital			Loss			Capital			Loss			Loss
Balance at December 31, 2004	$	805,084		$	—		$	10,739		$	—		$	257,622		$	—		$	1,073,445

Net income		100,486						1,340						32,155						133,981

Distributions to partners		(84,375	)					(1,125	)					(27,000	)					(112,500	)


Balance at December 31, 2005		821,195			—			10,954			—			262,777			—			1,094,926

Net income		184,627						2,462						59,080						246,169

Distributions to partners		(140,625	)					(1,875	)					(45,000	)					(187,500	)

Adjustment to liability for unfunded postretirement benefit obligation (Note 3)		—			(8,576	)		—			(115	)		—			(2,744	)		(11,435	)


Balance at December 31, 2006		865,197			(8,576	)		11,541			(115	)		276,857			(2,744	)		1,142,160

Net loss		(1,535	)					(21	)					(491	)					(2,047	)

Increase in liability for unfunded postretirement benefit obligation		—			(2,016	)		—			(27	)		—			(645	)		(2,688	)


Balance at June 30, 2007	$	863,662		$	(10,592	)	$	11,520		$	(142	)	$	276,366		$	(3,389	)	$	1,137,425

The accompanying notes are an integral part of these consolidated financial statements.

OXY VINYLS, LP AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

For the Six Months Ended June 30, 2007 and the Years Ended December 31, 2006 and 2005

(Amounts in thousands)


	Six Months Ended			Year Ended			Year Ended
	6/30/2007			12/31/2006			12/31/2005
CASH FLOW FROM OPERATING ACTIVITIES:
Net (loss) income	$	(2,047	)	$	246,169		$	133,981
Adjustments to reconcile net (loss) income to net cash (used) provided by operating activities:
Depreciation and amortization		68,878			113,660			122,587
Minority interest		3,552			8,081			36,701
Other noncash charges to income, net		1,203			4,982			5,820
Loss on retirement of assets, net		1,831			8,524			9,414
Restructuring and asset writedowns		—			—			104,686
Gain on sale of assets		(887	)		(18,899	)		—
Changes in operating assets and liabilities:
(Increase) decrease in trade and other receivables		(68,208	)		30,369			(178,947	)
(Increase) decrease in inventories		(4,115	)		36,550			(33,933	)
Decrease (increase) in prepaid expenses		45			6,907			(7,338	)
Decrease in receivable from OXY Receivables Corporation		—			—			172,147
Increase in major maintenance spending		(2,718	)		(2,006	)		(4,510	)
Decrease in accounts payable, property taxes and other accrued liabilities		(17,182	)		(4,805	)		(94	)
Increase (decrease) in current foreign income taxes payable		57			(31	)		279
Increase in foreign income taxes payable		1,443			—			—
Increase (decrease) in payable to Occidental Chemical Corporation, net		19,222			(22,460	)		(4,110	)
(Increase) decrease in receivable from PolyOne Corporation, net		(12,607	)		10,622			(28,995	)
Other operating, net		(1,825	)		(8,122	)		(9,830	)


Net cash (used) provided by operating activities		(13,358	)		409,541			317,858

CASH FLOW FROM INVESTING ACTIVITIES:
Capital expenditures		(34,746	)		(136,135	)		(87,786	)
Proceeds from sale of assets		1,655			11,348			—


Net cash used by investing activities		(33,091	)		(124,787	)		(87,786	)

CASH FLOW FROM FINANCING ACTIVITIES:
Payments of long term-debt		(24,750	)		(133,465	)		—
Distributions to partners		—			(187,500	)		(112,500	)
Payment of notes to Occidental Chemical Corporation		—			(9,964	)		—
Increase in minority interest in OxyMar due to capital contributions from OCC		—			54,901			—
Increase (decrease) in loans payable to Occidental Petroleum Investment Co.		83,151			(9,172	)		(116,634	)


Net cash provided (used) by financing activities		58,401			(285,200	)		(229,134	)


Increase (decrease) in cash and cash equivalents		11,952			(446	)		938

Cash and cash equivalents, beginning of period		517			963			25


Cash and cash equivalents, end of period	$	12,469		$	517		$	963

The accompanying notes are an integral part of these consolidated financial statements.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -

Formation and operations -

Oxy Vinyls, LP (“OxyVinyls” or the “Partnership”), a Delaware limited partnership, was formed on April 6, 1999, pursuant to a Limited Partnership Agreement among Occidental PVC LP, Inc. (the “Oxy Limited Partner”) and Occidental PVC, LLC (the “Oxy General Partner”), wholly-owned subsidiaries of Occidental Chemical Corporation (“OCC”) and 1999 PVC Partner Inc., (the “PolyOne Limited Partner”), a subsidiary of PolyOne Corporation (“PolyOne”). The contributions and related transactions described in this Note were effective, and the Partnership commenced operations, as of April 30, 1999, at which time the Limited Partnership Agreement was amended pursuant to a First Amended and Restated Limited Partnership Agreement dated as of April 30, 1999 (collectively with the Limited Partnership Agreement, the “Partnership Agreement”). Through the Oxy General Partner and the Oxy Limited Partner, OCC indirectly owns a 76 percent interest in the Partnership. OCC is an indirect, wholly-owned subsidiary of Occidental Petroleum Corporation (“OPC”). Through the PolyOne Limited Partner, PolyOne indirectly owns a 24 percent interest in the Partnership.

The Partnership owns and operates polyvinyl chloride (“PVC”), vinyl chloride monomer (“VCM”) and chlor-alkali manufacturing facilities in the United States and Canada that were contributed on behalf of the Oxy General Partner and the Oxy Limited Partner by OCC, and on behalf of the PolyOne Limited Partner, by PolyOne. A 50 percent equity interest in OXYMAR (“OxyMar”), which was a Texas general partnership between Oxy VCM Corporation (“Oxy VCM”), an indirect wholly-owned subsidiary of OCC, and U.S. VCM Corporation (“U.S. VCM”), a wholly-owned subsidiary of Marubeni Corporation (“Marubeni”), a Japanese corporation, was contributed to the Partnership at formation through the merger of Oxy VCM into the Oxy General Partner and the subsequent transfer by the Oxy General Partner of its equity interest in OxyMar to the Partnership. OxyVinyls consolidates OxyMar under the provisions of Financial Accounting Standards Board (“FASB”) Interpretation (“FIN”) No. 46, “Consolidation of Variable Interest Entities” (“FIN No. 46”). (See Principles of consolidation and minority interest section below and Note 2.) As of April 30, 2004, Marubeni exercised its option to put its interest in OxyMar to OCC. (See Note 2.)

Under terms of the Partnership Agreement, net income is allocated pro-rata among the partners based on their percentage ownership of the Partnership. Distributions to the partners and any additional cash contributions required by the Partnership are also based on the partners’ percentage ownership of the Partnership.

Principles of consolidation and minority interest -

The consolidated financial statements include the accounts of OxyVinyls, OxyMar (as discussed below), LaPorte Chemicals Corporation (“LaPorte”), OxyVinyls Export Sales LLC and OxyVinyls Canada Inc. (“OxyVinyls Canada”), whose functional currency is the U.S. dollar. All intercompany accounts and transactions have been eliminated.

OxyMar is 50 percent owned by OxyVinyls and 50 percent owned and operated by OCC. The consolidated financial statements include 100 percent of the accounts of OxyMar. OCC’s 50 percent interest in OxyMar and OxyMar’s results of operations have been reflected as a minority interest. (See Note 2.)

Certain financial statement and notes data have been reclassified to conform to the June 30, 2007 presentation.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES — (continued)

Risks and uncertainties -

The process of preparing consolidated financial statements in conformity with accounting principles generally accepted in the United States of America requires the use of estimates and assumptions regarding certain types of assets, liabilities, revenues and expenses. Such estimates primarily relate to unsettled transactions and events as of the date of the consolidated financial statements. Accordingly, upon settlement, actual results may differ from estimated amounts, but generally not by material amounts. Management believes that these estimates and assumptions provide a reasonable basis for the fair presentation of OxyVinyls’ financial position and results of operations.

The carrying value of OxyVinyls’ property, plant and equipment (“PP&E”) is based on the cost incurred to acquire the PP&E, net of accumulated depreciation and any impairment charges. OxyVinyls performs impairment tests on its assets whenever events or changes in circumstances lead to a reduction in the estimated useful lives or estimated future cash flows that would indicate that the carrying amount may not be recoverable, or when management’s plans change with respect to those assets. Under the provisions of Statement of Financial Accounting Standards (“SFAS”) No. 144, “Accounting for the Impairment or Disposal of Long-Lived Assets” (“SFAS No. 144”), OxyVinyls must compare the undiscounted future cash flows of an asset to its carrying value. (See Note 5.)

Since OxyVinyls’ major products are commodities, significant changes in the prices of chemical products could have a significant impact on OxyVinyls’ results of operations for any particular period. OxyVinyls also depends on feedstocks and energy to produce chemicals, both of which are commodities subject to significant price fluctuations. OxyVinyls had two major customers during the periods presented, which accounted for 25.9 percent, 28.2 percent and 28.0 percent of total sales for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. OxyVinyls’ receivable from these two customers was approximately $75 million and $58 million at June 30, 2007 and December 31, 2006, respectively.

Substantially all key raw materials are supplied by related parties. (See Notes 13 and 17.)

Revenue recognition -

Revenue from product sales is recognized after the product is shipped and title has passed to the customer. Prices are fixed at the time of shipment. Customer incentive programs provide for payments or credits to be made to customers based on the volume of product purchased over a defined period. Total customer incentive payments over a given period are estimated and recorded as a reduction to revenue ratably over the contract period. Such estimates are evaluated and revised as warranted.

Income taxes -

The Partnership is generally not subject to income taxes except for Canadian income taxes related to its consolidated subsidiary, OxyVinyls Canada, as well as certain U.S. state and federal income taxes associated with OxyVinyls’ wholly-owned subsidiary, LaPorte. In addition, OxyVinyls is subject to the Texas Legislature’s House Bill 3 (“Texas Margin Tax”), which was enacted in May 2006 and amended in May 2007. (See Note 12.)

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES — (continued)

Income taxes — (continued)

The Partnership follows SFAS No. 109, “Accounting for Income Taxes”, pursuant to which the liability method is used in accounting for taxes. Under this method, deferred tax assets and liabilities are determined based on differences between financial reporting and tax basis of assets and liabilities, and are measured using the enacted tax rates and regulations that will be in effect when the differences are expected to reverse.

Foreign currency transactions -

The functional currency applicable to OxyVinyls’ Canadian operations is the U.S. dollar since cash transactions are principally denominated in U.S. dollars. The effect of exchange rate changes on transactions denominated in nonfunctional currencies generated a gain (loss) of $.2 million, $4.0 million and $(.3) million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

Cash and cash equivalents -

Cash equivalents consist of highly liquid certificates of deposits with initial maturities of three months or less.

Interest income on deposits with unrelated parties was minimal in the six months ended June 30, 2007 and $.1 million in each of the years ended December 31, 2006 and 2005.

Cash overdrafts are reclassified to other accrued liabilities and amounted to $5.7 million and $8.1 million as of June 30, 2007 and December 31, 2006, respectively.

Other assets -

Other assets are net of accumulated amortization and include certain tangible assets and deferred charges that are amortized over the estimated periods to be benefited (three to ten years).

Major maintenance expenditures -

Prior to 2007, OxyVinyls used the accrue-in-advance method to account for major maintenance turnaround expenditures. Under this method, an estimate was made of the costs expected to be incurred in connection with the next planned major maintenance shutdown. That estimate was then accrued on a straight-line basis over the period of time until the next planned major maintenance shutdown occurs. The liability for major maintenance turnaround expenditures included in other accrued liabilities was $16.5 million as of December 31, 2006. Effective January 1, 2007, OxyVinyls changed the accounting method for major maintenance turnaround expenditures to the deferral method. (See Note 3.) The major maintenance balance in other assets was $35.8 million as of June 30, 2007.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES — (continued)

Asset retirement obligations -

In accordance with SFAS No. 143, “Accounting for Asset Retirement Obligations” (“SFAS No. 143”), OxyVinyls recognizes the fair value of a liability for an asset retirement obligation in the period in which the liability is incurred or becomes reasonably estimable and if there is a legal obligation to dismantle the asset and reclaim or remediate the property at the end of its useful life. The liability amounts are based on future retirement cost estimates and incorporate many assumptions such as time to abandonment, future inflation rates and the adjusted risk free rate of interest. When the liability is initially recorded, OxyVinyls capitalizes the cost by increasing the related property, plant and equipment balances. Over time the liability is increased and expense is recognized for the change in its present value, and the initial capitalized cost is depreciated over the useful life of the asset. No market risk premium has been included in OxyVinyls’ liability since no reliable estimate can be made at this time.

The following table summarizes the activity of the asset retirement obligation for the six months ended June 30, 2007 and the year ended December 31, 2006 (in thousands):


	June 30,		December 31,
	2007		2006
Beginning balance	$	6,344	$	14,453
Liabilities settled		—		(1,179	)
Accretion expense		212		626
Divestitures		—		(7,861	)
Revisions to estimated cash flows		—		305

Ending balance	$	6,556	$	6,344

Exchanges -

Finished product exchange transactions, which involve homogeneous commodities held for sale in the ordinary course in the same line of business and do not involve the payment or receipt of cash, are not accounted for as purchases and sales. Any resulting volumetric exchange balances are accounted for as inventory in accordance with established inventory valuation policy.

Research and development costs -

Research and development costs, which are charged to selling, general and administrative and other operating expenses as incurred, were $1.5 million, $2.9 million and $3.0 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

Supplemental cash flow information -

Cash payments for income taxes totaled $.8 million, $1.5 million and $3.0 million during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. Net interest paid totaled $8.2 million, $18.3 million and $30.4 million during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES — (continued)

Fair value of financial instruments -

OxyVinyls values financial instruments as required by SFAS No. 107, “Disclosures about Fair Value of Financial Instruments”. The carrying amounts of cash and cash equivalents approximate fair value because of the short maturity of those instruments. OxyVinyls estimates the fair value of its long-term debt based on the quoted market prices for the same or similar issues or on the yields offered to OxyVinyls for debt of similar rating and similar remaining maturities. The estimated fair value of OxyMar’s bonds referenced in Note 6 was $6.8 million and $32.1 million at June 30, 2007 and December 31, 2006, respectively, compared with a carrying value of $6.8 million and $31.5 million at June 30, 2007 and December 31, 2006, respectively. The carrying value of all other financial instruments approximates fair value.

(2) OXYMAR -

OxyMar is a partnership that is 50 percent owned by OxyVinyls and 50 percent owned by Oxy VCM, LP, an indirectly wholly-owned subsidiary of OCC. OxyMar owns a VCM manufacturing facility at Ingleside, Texas, which is operated on OxyMar’s behalf by OCC pursuant to an operating agreement. OxyMar is not subject to federal income taxes because its income is directly reportable by the individual partners. OxyVinyls consolidates its investment in OxyMar under FIN No. 46, which requires a company to consolidate a variable interest entity (“VIE”) if it is designated as the primary beneficiary of that entity even if the company does not have a majority of the VIE’s voting interests. A VIE is generally defined as an entity whose equity is unable to finance its activities or whose owners lack the risks and rewards of ownership. The statement also imposes disclosure requirements for all the VIEs of a company, even if the company is not the primary beneficiary.

Under the terms of the Third Amended and Restated Partnership Agreement effective April 30, 2004, net income is allocated among the partners pro-rata based on their percentage interest in the results of OxyMar. Distributions to the partners are also based on the partners’ percentage interest in OxyMar.

All intercompany accounts and transactions between OxyVinyls and OxyMar have been eliminated.

(3) ACCOUNTING CHANGES -

Future accounting changes -

In September 2006, the FASB issued SFAS No. 157, “Fair Value Measurements” (“SFAS No. 157”), which establishes a framework for measuring fair value and expands disclosures about fair value measurements. SFAS No. 157 is effective for financial statements issued for fiscal years beginning after November 15, 2007. OxyVinyls is currently assessing the effect of SFAS No. 157 on its financial statements.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(3) ACCOUNTING CHANGES — (continued)

Recently adopted accounting changes -

In September 2006, the FASB issued FASB Staff Position (“FSP”) AUG AIR-1, “Accounting for Planned Major Maintenance Activities” (FSP AUG AIR-1”), which is effective for the first fiscal year beginning after December 15, 2006. This FSP prohibits the use of the accrue-in-advance method of accounting for planned major maintenance activities, which was used by certain operations of OxyVinyls. When OxyVinyls adopted FSP AUG AIR-1 on January 1, 2007, those operations changed to the deferral method of accounting for planned major maintenance activities. The adoption of FSP AUG AIR-1 was retrospectively applied to all periods presented and the impact to the income statements was income of $1.6 million in 2006 and $4.1 million in 2005. The effect on OxyVinyls’ financial statements upon adoption was an increase of $38.3 million in other assets, a decrease of $12.3 million in accrued liabilities, an increase of $4.2 million in minority interest and, an increase of $46.4 million in partners’ capital.

In September 2006, the FASB issued SFAS No. 158, “Employers’ Accounting for Defined Benefit Pension and Other Postretirement Plans – an amendment of FASB Statements No. 87, 88, 106, and 132(R)” (“SFAS No. 158”). This Statement requires an employer to recognize the overfunded or underfunded amounts of its defined benefit pension and postretirement plans as an asset or liability and recognize changes in the funded status of these plans in the year in which the changes occur through other comprehensive income (“OCI”) if they are not recognized in the consolidated statement of operations. The Statement also requires a company to use the date of its fiscal year-end to measure the plans. The recognition and disclosure provisions of SFAS No. 158 are effective for the fiscal years ending after December 15, 2006. The requirement to use the fiscal year-end as the measurement date is effective for fiscal years ending after December 15, 2008. OxyVinyls adopted this Statement on December 31, 2006, and as a result, recorded an $11.4 million reduction in accumulated OCI and a corresponding increase in liabilities. (See Note 11.)

In June 2006, the FASB issued FASB Interpretation No. 48, “Accounting for Uncertainty in Income Taxes, an interpretation of FASB Statement No. 109” (“FIN No. 48”). This interpretation specifies that benefits from tax positions should be recognized in the financial statements only when it is more-likely-than-not that the tax position will be sustained upon examination by the appropriate taxing authority having full knowledge of all relevant information. A tax position meeting the more-likely-than-not recognition threshold should be measured at the largest amount of benefit for which the likelihood of realization upon ultimate settlement exceeds 50 percent. OxyVinyls adopted FIN No. 48 on January 1, 2007 and there was no material effect on the financial statements upon adoption.

In September 2006, the Securities and Exchange Commission issued Staff Accounting Bulletin (“SAB”) 108, “Financial Statements – Considering the Effects of Prior Year Misstatements when Quantifying Misstatements in Current Year Financial Statements” (“SAB 108”). SAB 108 requires quantification of the impact of all prior year misstatements from both a consolidated statement of operations and a consolidated balance sheet perspective to determine if the misstatements are material. SAB 108 is effective for financial statements issued for fiscal years ending after November 15, 2006. OxyVinyls adopted SAB 108 effective December 31, 2006, and there was no material effect on the financial statements upon adoption.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(3) ACCOUNTING CHANGES — (continued)

Recently adopted accounting changes — (continued)

In September 2005, the Emerging Issues Task Force (“EITF”) finalized the provisions of EITF Issue No. 04-13, “Accounting for Purchases and Sales of Inventory with the Same Counterparty” (“EITF No. 04-13”), which provides accounting guidance about whether buy/sell arrangements should be accounted for at historical cost and whether these arrangements should be reported on a gross or net basis. Buy/sell arrangements typically are contractual arrangements where the buy and sell agreements are entered into in contemplation of one another with the same counterparty. OxyVinyls reports all buy/sell arrangements on a net basis and at historical cost. This Issue was effective in the first interim period beginning after March 15, 2006. OxyVinyls prospectively adopted this Issue in the second quarter of 2006 and there was no material effect on the financial statements upon adoption.

Certain OxyVinyls executives participate in OPC stock-based incentive plans that are described in Note 10. On July 1, 2005, OPC early adopted the fair value recognition provisions of SFAS No. 123R, “Share-Based Payments” (“SFAS No. 123R”), under the modified prospective transition method. Prior to July 1, 2005, OPC applied the Accounting Principles Board (APB) Opinion No. 25 intrinsic value accounting method for its stock incentive plans. Under the modified prospective transition method, the fair value recognition provisions apply only to new awards or awards modified after July 1, 2005. Additionally, the fair value of existing unvested awards at the date of adoption is recorded in compensation expense over the remaining requisite service period. OPC adopted this statement in the third quarter of 2005 and the adoption did not have a material impact on the consolidated financial statements of OxyVinyls. (See Note 10.)

(4) INVENTORIES -

Inventories are valued at the lower of cost or market. The last-in, first-out (“LIFO”) method was used to determine the cost of $82 million and $81 million of OxyVinyls’ U.S. inventories at June 30, 2007 and December 31, 2006, respectively. The remaining inventories in Canada and OxyMar are accounted for using the first-in, first-out (“FIFO”) and weighted-average-cost methods. Inventories consisted of the following at June 30, 2007 and December 31, 2006 (in thousands):


	June 30,			December 31,
	2007			2006
Raw materials	$	26,450		$	22,892
Materials and supplies		17,491			18,066
Finished goods		158,091			134,677

		202,032			175,635
LIFO and lower of cost or market reserve		(67,716	)		(45,464	)

Total inventories	$	134,316		$	130,171

In 2007 there was an increment of LIFO inventory quantities resulting from higher VCM volumes, partially offset by lower PVC volume, compared to 2006. In 2006 there was an increment of LIFO inventory quantities resulting from higher PVC and VCM volumes compared to 2005

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(5) PROPERTY, PLANT AND EQUIPMENT -

Property additions and major renewals and improvements are capitalized at cost. Interest costs incurred in connection with major capital expenditures are capitalized and depreciated over the lives of the related assets. OxyVinyls capitalized $1.4 million and $2.7 million of interest during the six months ended June 30, 2007 and the year ended December 31, 2006, respectively.

The estimated useful lives of OxyVinyls’ assets, which range from three years to 50 years, are used to compute depreciation expense and are also used in impairment tests. The estimated useful lives used for the facilities are based on the assumption that OxyVinyls will provide an appropriate level of annual expenditures to ensure that productive capacity is maintained. Without these continued expenditures, the useful lives of these plants could significantly decrease. Other factors that could change the estimated useful lives of OxyVinyls’ plants include sustained higher or lower product prices, which are particularly affected by both domestic and foreign competition, feedstock costs, energy prices, environmental regulations, competition and technological changes.

OxyVinyls performs impairment tests on its assets whenever events or changes in circumstances lead to a reduction in the estimated useful lives or estimated future cash flows that would indicate that its carrying amount may not be recoverable, or when management’s plans change with respect to those assets. Under the provisions of SFAS No. 144, OxyVinyls compares the undiscounted future cash flows of an asset to its carrying value. The key factors that could significantly affect future cash flows are future product prices, which are particularly affected by both domestic and foreign competition, feedstock costs, energy costs, regulations and remaining estimated useful life. Impaired assets are written down to their estimated fair values.

Due to a temporary decrease in demand for some of its products, OxyVinyls temporarily idled a chlor-alkali plant in December 2001. During the third quarter of 2005, OxyVinyls reviewed all of its assets and decided to close its least competitive plants and upgrade certain remaining operations. As a result of this review, OxyVinyls recorded a $92.5 million charge for the write-off of the previously idled chlor-alkali facility. (See Note 14.)

OxyMar receives steam from an adjacent cogeneration facility through an affiliate of OCC. OxyMar had maintained steam boilers as a backup source of steam in the event that the cogeneration facility was unable to provide steam for VCM facility. Management determined that it was no longer necessary to maintain the boilers in a stand-by condition as a backup source of steam due to the proven reliability of the cogeneration facility. The remaining net book value of the steam boilers, $3.0 million, was written off in the third quarter of 2005.

On December 2, 2005, OxyVinyls formally announced that the OxyVinyls PVC plant in Scotford, Alberta would close at the end of January 2006. At December 31, 2005, the remaining net book value of the Scotford plant was $.3 million. In 2006, the Scotford facility was sold and OxyVinyls recognized a gain of $16.9 million. OxyVinyls recorded an additional loss of $.7 million on the sale in June 2007 related to stores inventory. (See Note 15.)

OxyVinyls’ plants are depreciated using either the unit-of-production or straight-line method based upon the estimated useful life of the facilities.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(5) PROPERTY, PLANT AND EQUIPMENT — (continued)

Property, plant and equipment consisted of the following at June 30, 2007 and December 31, 2006 (in thousands):


	June 30,			December 31,
	2007			2006
Land and land improvements	$	49,276		$	48,862
Buildings		72,084			71,523
Machinery and equipment		2,074,951			2,024,106
Construction in progress		75,450			93,046

		2,271,761			2,237,537
Accumulated depreciation		(1,054,891	)		(994,982	)

Property, plant and equipment, net	$	1,216,870		$	1,242,555

(6) LONG-TERM DEBT AND NOTE PAYABLE TO OCC -

A note payable to OCC of $10.0 million, which carried an interest rate of 4.2 percent, was paid to OCC on November 1, 2006. Interest expense related to the note payable to OCC was $.3 million and $.4 million for the years ended December 31, 2006 and 2005.

In 1996, OxyMar issued bonds with an aggregate principal amount of $165 million, which bear interest at 7.5 percent per year and are due in 2016 (the “Bonds”). Proceeds, net of amortizable financing fees and original issue discount, totaled $163.3 million. Semiannual interest payments are due on February 15 and August 15.

OPC unconditionally guarantees OxyMar’s obligation to pay interest and principal on the Bonds. OPC had purchased $108.7 million of the Bonds as of December 31, 2005. During the second quarter of 2006, OxyMar retired the Bonds purchased by OPC in the amount of $108.7 million through capital contributions from its partners. As part of this transaction, OPC loaned $54.9 million to OxyVinyls, who in turn contributed the $54.9 million to OxyMar for use in retiring the Bonds. (See Note 7.)

OxyMar was obligated to make semiannual principal repayments on the Bonds of a minimum of $8.3 million beginning August 2006. OxyMar opted to pay an increased principal amount of $24.7 million at each of August 15, 2006 and February 15, 2007. OxyMar has committed to pay the remaining $6.8 million in outstanding principal, which is shown as a current liability on the accompanying consolidated balance sheet, on August 15, 2007. (See Note 17.)

Interest expense related to the Bonds was $.5 million, $7.3 million and $12.4 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

(7) CASH MANAGEMENT AND CREDIT AND DEPOSIT FACILITIES AGREEMENTS WITH OPC -

OxyVinyls participates in OPC’s centralized cash management system for its domestic operations through OPC’s affiliate, Occidental Petroleum Investment Co. (“OPIC”), and maintains a concentration account to collect cash receipts and fund disbursements. OPIC funds any negative cash balances and collects any excess cash balances on a daily basis in the concentration account under the terms of a Cash Management and Credit and Deposit Facilities Agreement between OPIC and OxyVinyls (the “Agreement”).

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(7) CASH MANAGEMENT AND CREDIT AND DEPOSIT FACILITIES AGREEMENTS WITH OPC — (continued)

Under the terms of the Agreement, OPIC committed to loan OxyVinyls, on a revolving basis, up to $104 million. A new Cash Management and Credit and Deposit Facilities Agreement (the “New Agreement”), replaced the original Agreement in 2003, which was subsequently replaced by the First Amended and Restated Cash Management and Credit and Deposit Facilities Agreement (the “Amended Agreement”) as of May 1, 2006. Effective May 1, 2007, the Amended Agreement was extended through April 30, 2008. The Amended Agreement may be terminated at any time by OxyVinyls, at which date any outstanding loans and any accrued interest and fees payable become due.

All outstanding loan balances as of December 31, 2006 are shown in Loans Payable to OPIC, net, in the accompanying consolidated balance sheet. All outstanding loan balances as of June 30, 2007 have been reclassified to current liabilities due to subsequent events. (See Note 17.)

As of June 30, 2007 and December 31, 2006, the outstanding loan balance, including interest, was $57.3 million and $.1 million, respectively.

Under the terms of the first amendment to the New Agreement, loans payable to OPIC accrued interest at the one-month London Interbank Offered Rate (“LIBOR”) plus a margin rate on loans payable to OPIC of 500 basis points from April 2004 through April 2006. Loans receivable from OPIC accrued interest at the one-month LIBOR. The Amended Agreement changed the margin rate to 400 basis points effective May 1, 2006. Net interest (expense)/income was $(1.4) million, $4.0 million and $.8 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

In June 2002, OPIC provided an additional loan of $13.7 million under an amendment to the Agreement with repayment required upon the earliest of the Deer Park, Texas chlor-alkali plant restart, termination of the credit facility or December 31, 2006. This loan bore interest consistent with the terms of the New Agreement. In June 2006, OxyVinyls paid OPIC $13.7 million to retire the loan. Interest expense was $.6 million and $1.2 million for the years ended December 31, 2006 and 2005, respectively.

In April 2003, OPIC provided a loan of $179.6 million (the “LaPorte Loan”) to fund the purchase of the leased LaPorte VCM plant. Under terms of the Amended Agreement, mandatory prepayment of outstanding debt is required when distributable cash is available, at an amount equal to 25 percent of distributable cash. OxyVinyls prepaid $46.9 million during 2004, $37.5 million during 2005, and $62.5 million during 2006, which reduced the LaPorte Loan balance to $32.7 million. The outstanding loan balance was $32.7 million at both June 30, 2007 and December 31, 2006. The LaPorte Loan accrues interest under the same terms as the revolving credit facility above. Interest expense was $1.5 million, $7.0 million and $10.2 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

On June 16, 2006, OxyVinyls borrowed an additional $54.9 million from OPIC (the “OBR Loan”) under the terms of the Amended Agreement. The outstanding principal accrues interest at 6.2 percent per annum. The first principal payment of $9.0 million is payable to OPIC in August 2007, and was included in current liabilities at December 31, 2006, with the remaining OBR Loan balance of $45.9 million shown as Loans Payable to OPIC, net. The entire balance of $54.9 million is included in current liabilities at June 30, 2007. Interest expense on the OBR Loan was $1.7 million and $1.9 million for the six months ended June 30, 2007 and the year ended December 31, 2006, respectively.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(7) CASH MANAGEMENT AND CREDIT AND DEPOSIT FACILITIES AGREEMENTS WITH OPC — (continued)

OxyMar also participates in OPC’s centralized cash management system through OPIC. Under the terms of a Cash Management and Credit Facilities Agreement (the “Original Agreement”) with OxyMar, OPIC makes loans each business day in an amount equal to the funds required to eliminate any negative balance in OxyMar’s bank account plus any payments due to OPIC. In addition, OxyMar transfers any excess funds at the end of each business day from its bank account to OPIC. The Original Agreement and subsequent amendments were replaced by the First Amended and Restated Cash Management and Credit and Deposit Facilities Agreement (the “OPIC Revolver”) effective May 1, 2006. Effective May 1, 2007, the Amended Agreement was extended through April 30, 2008. The credit facility limit was $150 million at June 30, 2007. The outstanding loan from OPIC was $63.0 million and $37.2 million at June 30, 2007 and December 31, 2006, respectively. Interest is calculated at the LIBOR rate plus the applicable credit facility margin, which was 400 basis points as of June 30, 2007. Interest expense on the OPIC Revolver was $2.3 million, $3.8 million and $7.4 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

(8) ENVIRONMENTAL LIABILITIES -

OxyVinyls voluntarily entered into a consent decree with the U.S. Environmental Protection Agency, the State of New Jersey and the Louisville Metropolitan Air Pollution Control District regarding contested compliance allegations at four manufacturing facilities. The decree was entered by the U.S. District Court for the Northern District of Texas in July 2006. Under the terms of the decree, OxyVinyls paid penalties of approximately $.3 million in August 2006 to resolve alleged state and federal law violations, and paid $.1 million in October 2006 toward a dust control study in New Jersey as a supplemental environmental project. In addition, OxyVinyls is undertaking emission reduction projects expected to reduce vinyl chloride emissions at a cost of approximately $1.1 million as supplemental environmental projects under the decree.

Pursuant to the terms of the asset contribution agreements with OxyVinyls, each partner is responsible for the environmental remediation costs and associated claims arising out of, in connection with or relating to conditions that existed prior to the formation of OxyVinyls with respect to the assets contributed by that partner. This responsibility extends to, among other things, environmental remediation of conditions identified before forming OxyVinyls and conditions first identified within ten years after the formation date, except to the extent, if any, that OxyVinyls exacerbates or accelerates the condition as provided in the contribution agreements. OxyVinyls has not created environmental conditions that currently require ongoing remediation pursuant to applicable laws, and has not exacerbated or accelerated any such environmental conditions. Since May 1, 1999, OxyVinyls has manufactured, processed, handled, used, reused, recycled, treated, stored and/or disposed of materials at or from its facilities in the ordinary course of its business. The possibility that the actions of OxyVinyls may require future remediation at any particular site is currently considered remote. Since OxyVinyls itself has no environmental remediation responsibilities that are probable and can be reasonably estimated, no accrual by OxyVinyls for environmental remediation is warranted.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(9) COMMITMENTS AND CONTINGENCIES -

Leases -

At June 30, 2007, future net minimum rental commitments under noncancelable operating leases with terms in excess of one year are as follows (in thousands):


July 1 through December 31, 2007	$	9,475
January 1 through December 31, 2008		27,881
2009		13,219
2010		18,079
2011		5,285
2012		1,975
Thereafter		5,865

	$	81,779

OxyVinyls has commitments for guaranteed residual values on leased equipment that totaled approximately $6.6 million as of June 30, 2007.

Rent expense was approximately $10.1 million, $21.8 million and $19.1 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively, and is included in cost of sales and selling, general and administrative and other operating expenses, net in the consolidated statements of operations.

Other -

OxyVinyls has certain other contractual commitments to purchase electrical power, raw materials and other obligations, all in the ordinary course of business and at market prices.

The Partnership also becomes involved in certain legal proceedings in the normal course of business. Management believes that the outcome of such matters will not significantly affect the Partnership’s consolidated financial position or results of operations.

Also see Notes 1 and 12 related to income taxes and Notes 6, 7 and 13 regarding related parties.

(10) STOCK-BASED INCENTIVE PLANS -

Certain OxyVinyls executives and senior managers participate in several OPC plans that provide for stock-based awards in the form of options, restricted stock (“RSUs”), stock appreciation rights (“SARs”), performance stock awards (“PSAs”) and dividend equivalents.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(10) STOCK-BASED INCENTIVE PLANS — (continued)

As discussed in Note 3, on July 1, 2005, OPC changed its method of accounting for stock-based compensation from the APB Opinion No. 25 intrinsic value accounting method to the fair value recognition provisions of SFAS No. 123R. Prior to July 1, 2005, OxyVinyls had already been expensing its SARs, RSUs and PSAs charges from OPC. On July 1, 2005, OxyVinyls began expensing its OPC options and recording compensation expense for all other OPC stock-based incentive awards using fair value amounts on the date of grant in accordance with SFAS No. 123R. OPC measures the fair values of options and stock settled SARs on the date of grant using the Black-Scholes option valuation model. The fair values of the stock-settled portions of PSAs are measured on the date of grant using a Monte Carlo simulation model. The fair values of the underlying OPC stock as of the grant dates of the PSAs granted in the six months ended June 30, 2007 and in 2006 and 2005 were $39.69, $39.94 and $29.18, respectively. The fair value of the cash-settled portion of PSAs is also estimated using a Monte Carlo simulation model each quarter, through vesting, using updated assumptions. Change in the fair value of the cash-settled portion of the PSAs is recorded as compensation expense. The adoption of SFAS No. 123R did not have a material impact on the consolidated financial statements of OxyVinyls.

OxyVinyls recognized compensation expenses for stock-based incentive plans of $3.5 million, $5.2 million and $4.8 million during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. As of June 30, 2007 and December 31, 2006 and 2005, there was $3.4 million, $4.6 million and $5.3 million, respectively, of unrecognized compensation expense related to all unvested stock-based incentive award grants. This expense is expected to be recognized over a weighted average period of 1.8 years.

The difference between compensation expense recorded by OxyVinyls using the intrinsic value method and the fair value method using SFAS No. 123R for the six months ended June 30, 2005 was not significant.

(11) RETIREMENT PLANS AND POSTRETIREMENT BENEFITS -

OxyVinyls participates in various defined contribution retirement plans that provide for periodic contributions by OxyVinyls based on plan-specific criteria, such as base pay, age level and/or employee contributions. Certain salaried employees participate in a supplemental retirement plan that provides restoration of benefits lost due to governmental limitations on qualified retirement benefits. OxyVinyls expensed approximately $3.5 million in the six months ended June 30, 2007 and $6.3 million during each of 2006 and 2005 under the provisions of these defined contribution and supplemental retirement plans.

OxyVinyls provides medical and dental benefits and life insurance coverage for certain active, retired and disabled employees and their eligible dependents. The benefits generally are funded by OxyVinyls as the benefits are paid during the year. The cost of providing these benefits is based on claims filed and insurance premiums paid for the period. The total benefit costs, including the postretirement costs, were approximately $4.5 million in the six months ended June 30, 2007 and $9.0 million in each of 2006 and 2005.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(11) RETIREMENT PLANS AND POSTRETIREMENT BENEFITS — (continued)

As discussed in Note 3, on December 31, 2006, OxyVinyls adopted the provisions of SFAS No. 158. This statement requires the employer to recognize the over-funded or under-funded amounts of its defined benefit and other postretirement plans as an asset or liability in its balance sheet and recognize changes in the funded status of these plans in the year in which the changes occur through OCI if they are not recognized in the consolidated statement of operations. The statement also requires companies to use the date of its fiscal year-end to measure the plans. The following table shows the effect of adopting the provisions of SFAS No. 158 on the consolidated balance sheets:


For the year ended December 31, 2006, (in thousands):	Debit/(Credit)
Accrued liabilities	$	(11,435	)
Accumulated OCI	$	11,435

Obligations and Funded Status -

OxyVinyls uses a measurement date of December 31 for postretirement benefit plans.


	June 30,			December 31,
For the periods ended, (in thousands):	2007			2006
Changes in benefit obligation:
Benefit obligation – beginning of period	$	38,654		$	35,851
Service cost – benefits earned during the period		492			851
Interest cost on projected benefit obligation		1,096			2,004
Actuarial loss		3,065			1,093
Benefits paid		(856	)		(1,145	)

Benefit obligation – end of period	$	42,451		$	38,654


Funded status:
Unfunded obligation	$	(42,451	)	$	(38,654	)
Unrecognized net loss		—			—

Net amount recognized	$	(42,451	)	$	(38,654	)


Accrued benefit liability	$	(42,451	)	$	(38,654	)
Net amount recognized	$	(42,451	)	$	(38,654	)

The amount recognized in the consolidated balance sheet as of June 30, 2007 and December 31, 2006 is as follows (in thousands):


	June 30,			December 31,
	2007			2006
Other accrued liabilities	$	(1,666	)	$	(1,125	)
Postretirement benefit obligations		(40,785	)		(37,529	)

	$	(42,451	)	$	(38,654	)

At June 30, 2007 and December 31, 2006, accumulated OCI included a net loss of $14.1 million and $11.4 million, respectively.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(11) RETIREMENT PLANS AND POSTRETIREMENT BENEFITS — (continued)

Components of Net Periodic Benefit Cost -


	June 30,		December 31,		December 31,
For the periods ended, (in thousands):	2007		2006		2005
Net periodic benefit cost:
Service cost – benefits earned during the period	$	492	$	851	$	881
Interest cost on benefit obligation		1,096		2,004		1,792
Recognized actuarial loss		377		887		675

Net periodic benefit cost	$	1,965	$	3,742	$	3,348

The estimated net loss for the postretirement plans that will be amortized from accumulated OCI into net periodic benefit cost over the next twelve months is $.8 million.

Additional information -

OxyVinyls’ postretirement benefit plan obligations are determined based on various assumptions and discount rates, as described below. The actuarial assumptions used could change in the near term as a result of changes in expected future trends and other factors which, depending on the nature of the changes, could cause increases or decreases in the liabilities accrued.

The following table sets forth the discount rates used to determine OxyVinyls’ benefit obligation and net periodic benefit cost for postretirement benefit plans:


	June 30,			December 31,
For the periods ended,:	2007			2006
Discount rates:
Benefit obligation		5.53	%		5.53	%
Net period benefit cost		5.53	%		5.33	%

The postretirement benefit obligation was determined by application of the terms of medical and dental benefits and life insurance coverage, including the effect of established maximums on covered costs, together with relevant actuarial assumptions and healthcare cost trend rates projected at a Consumer Price Index (“CPI”) increase of 1.25 percent and 2.5 percent as of June 30, 2007 and December 31, 2006, respectively. Participants pay for all medical cost increases in excess of increases in the CPI. Consequently, increases in the assumed healthcare cost trend rates would have no impact on the postretirement benefit obligation at June 30, 2007 and December 31, 2006.

Estimated future benefit payments, which reflect expected future service, as appropriate, are expected to be paid as follows for the periods ended December 31, (in thousands):


July 1 through December 31, 2007	$	856
January 1 through December 31, 2008		1,700
2009		1,900
2010		2,100
2011		2,300
2012		2,500
2013-2017		15,000

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(11) RETIREMENT PLANS AND POSTRETIREMENT BENEFITS — (continued)

Additional information — (continued)

In addition, postemployment and Canadian postretirement healthcare obligations were $5.5 million at both June 30, 2007 and December 31, 2006.

(12) INCOME TAXES -

Deferred foreign and state income taxes reflect the future tax consequences of temporary differences between the tax basis of assets and liabilities and their reported amounts. Deferred foreign and state income taxes were as follows (in millions):


	June 30,			December 31,
Tax effects of temporary differences:	2007			2006
Net operating losses	$	22.0		$	15.3
Property, plant and equipment		1.1			1.9
All other differences		1.1			.7

Total deferred tax assets	$	24.2		$	17.9

Property, plant and equipment differences	$	(2.9	)	$	(1.5	)

Total deferred tax liabilities	$	—		$	(1.5	)

Valuation allowance	$	(24.2	)	$	(17.9	)


Total deferred taxes	$	(2.9	)	$	(1.5	)

At June 30, 2007 and December 31, 2006, OxyVinyls had Canadian federal and provincial net operating loss carryforwards of approximately $68.2 million and $41.7 million, respectively. The temporary differences resulting in deferred foreign and state income tax assets are primarily related to property, plant and equipment. A $6.1 million temporary timing difference asset was recorded in 2005 relating to the shutdown of the Scotford plant and this timing difference reversed in 2006 upon the sale of the Scotford plant. (See Note 15.)

The state of Texas enacted the Texas Margin Tax during 2006, which affected OxyVinyls in 2007 due to its operations in Texas. OxyVinyls recorded deferred tax expense of $.2 million and $1.5 million for the six months ended June 30, 2007 and the year ended December 31, 2006, respectively for the cumulative temporary difference in property, plant and equipment for OxyVinyls’ tax versus book liabilities that are apportioned to Texas at the 1 percent rate for the new tax.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(12) INCOME TAXES — (continued)

The provisions (credits) for domestic and foreign income and other taxes from continuing operations consisted of the following (in millions):


	U.S.		State &
	Federal		Local		Foreign		Total
Six months ended June 30, 2007:
Current	$	.5	$	.3	$	.2	$	1.0
Non-current		—		—		1.4		1.4
Deferred		—		1.4		—		1.4

	$	.5	$	1.7	$	1.6	$	3.8


Year ended December 31, 2006:
Current	$	—	$	2.5	$	.1	$	2.6
Deferred		—		1.5		—		1.5

	$	—	$	4.0	$	.1	$	4.1


Year ended December 31, 2005:
Current	$	1.4	$	1.3	$	.2	$	2.9
Deferred		—		—		—		—

	$	1.4	$	1.3	$	.2	$	2.9

OxyVinyls is subject to audit by taxing authorities in various tax jurisdictions. Management believes that any resulting adjustments to OxyVinyls’ tax liabilities would not have a material adverse impact on its financial position or results of operations.

OxyVinyls paid taxes of $.8 million, $1.5 million and $3.0 million during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

(13) RELATED-PARTY TRANSACTIONS -

OxyVinyls sells PVC to PolyOne under the terms of a sales agreement that expires on December 31, 2013. PolyOne has the right to renew this agreement for two five-year periods. The agreement requires PolyOne and its majority affiliates to purchase their annual PVC requirements in North America in excess of 290 million pounds from OxyVinyls. For the first 880 million pounds of PVC supplied in any calendar year, PolyOne will pay a price based upon cost and other market considerations. PolyOne will purchase all volumes over 880 million pounds in any calendar year at a competitive market price. (See Note 17.)

OxyVinyls sells VCM to OCC and PolyOne under the terms of separate sales agreements that expire on December 31, 2013. PolyOne has a right to renew their agreement for two five-year periods. The agreements require that OCC and PolyOne purchase all of their VCM requirements for production of PVC in North America from OxyVinyls at market price. Under the terms of the agreements, PolyOne and OCC receive an integration credit on the first 210 million and 215 million pounds purchased in any year, respectively, to compensate for surrendered purchasing power on major feedstocks. Additionally, under the terms of a new agreement entered into in 2005 that expires on December 31, 2009, OxyVinyls sells a limited quantity of VCM to OCC. (See Note 17.)

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(13) RELATED-PARTY TRANSACTIONS — (continued)

OxyVinyls’ sales of VCM to OCC under the terms of these agreements were approximately $4.3 million, $9.6 million and $1.7 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. OxyVinyls’ sales of PVC and VCM to PolyOne under the terms of these agreements were approximately $152 million, $369 million and $368 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

OxyVinyls sells chlor-alkali and other specialty products to OCC under the terms of a sales agreement that expires on December 31, 2013. This agreement requires OCC to purchase at a market-related price all of these products produced by OxyVinyls that are not required for its internal uses. This agreement further requires OxyVinyls to pay OCC a fee for marketing excess chlor-alkali products to third parties. OxyVinyls sold $71.1 million, $149.0 million and $179.1 million of chlor-alkali and specialty products to OCC during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. OxyVinyls paid a marketing fee of $5.5 million, $11.3 million and $13.0 million to OCC during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

OxyVinyls purchases ethylene from Equistar Chemicals LP (“Equistar”), an affiliate of Lyondell Chemical Corporation (“Lyondell”), an available-for-sale cost method investment of OPC as of June 30, 2007, under the terms of an agreement. OxyVinyls purchases ethylene for the Deer Park VCM facility and the LaPorte VCM facility based on a market related price, as defined in the agreement. The agreement expires on December 31, 2018, with decreasing volume requirements in years 2014 through 2018. OxyVinyls purchased $121.1 million, $286.6 million and $286.5 million of ethylene from Equistar under the terms of these agreements during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. In addition, OxyMar purchased ethylene of $159.6, $346.3 million and $338.2 million from Equistar during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. (See Note 17.)

OxyVinyls purchases chlorine from Sunbelt Chlor Alkali Partnership, an equity investee of PolyOne (“Sunbelt”), under the terms of an agreement that expires on December 31, 2094. This agreement requires OxyVinyls to purchase at a market-related price, less a discount, all chlorine produced by Sunbelt at its chlorine manufacturing facility in McIntosh, Alabama, up to a maximum of 250 thousand tons per year. OxyVinyls purchased $33.9 million, $72.2 million and $76.6 million of chlorine from Sunbelt under the terms of this agreement during the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. (See Note 17.)

Pursuant to raw material purchase agreements, OxyMar purchases substantially all of its principal raw materials at approximate market prices from OCC. Total chlorine purchased from OCC in the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, was $105.1 million, $216.7 million and $230.7 million, respectively.

OCC is engaged, under the terms of an operating agreement, to operate and maintain OxyMar’s manufacturing facility, the cost of which is reimbursed to OCC by OxyMar. OxyMar also reimburses OCC for steam, electricity, natural gas and other raw materials, along with other operating costs, which totaled $42.3 million, $78.4 million and $83.0 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively.

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(13) RELATED-PARTY TRANSACTIONS — (continued)

OxyVinyls incurs costs charged by OCC and PolyOne under the terms of various service and shared facilities agreements. These agreements are in effect generally so long as services continue to be provided between parties and/or facilities continue to be shared. Under the provisions of these agreements, OxyVinyls receives from and makes payments to PolyOne and OCC for shared facilities at Louisville, Kentucky, Pedricktown, New Jersey and Pasadena, Texas. In some cases, the agreements contain renewal options at negotiated prices. The net amounts of these costs were approximately $.4 million, $.5 million and $.6 million for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively. (See Note 17.) Additionally, OxyVinyls incurred the following costs payable to OCC and PolyOne (in millions):


	OCC		PolyOne
Administrative and other support services:
For the six months ended June 30, 2007	$	10.0	$	.7
For the year ended December 31, 2006		19.3		1.5
For the year ended December 31, 2005		20.7		1.7

OxyMar support and services fee:
For the six months ended June 30, 2007	$	2.5	$	—
For the year ended December 31, 2006		5.0		—
For the year ended December 31, 2005		5.0		—

Net railcar rent expense:
For the six months ended June 30, 2007	$	1.4	$	—
For the year ended December 31, 2006		3.1		—
For the year ended December 31, 2005		3.1		—

OxyVinyls had a net payable to OCC of $47.0 million and $25.3 million as of June 30, 2007 and December 31, 2006, respectively.

OxyVinyls had a net receivable from PolyOne of $29.7 million and $17.3 million as of June 30, 2007 and December 31, 2006, respectively. (See Note 1.)

(14) WRITE-OFF OF DEER PARK, TEXAS FACILITY -

In December 2001, OxyVinyls announced the temporary idling of its Deer Park, Texas chlor-alkali plant due to low industry capacity utilization and low product market selling prices. The plant had been maintained in a stand-by mode pending strengthening in overall economic conditions. During the third quarter of 2005, OxyVinyls reviewed all of its chemical assets and decided to close its least competitive plants and upgrade certain remaining operations. As a result of this review, OxyVinyls recorded an $84.9 million write-off of the remaining asset value of the chlor-alkali facility and a $7.6 million impairment write-down for an associated dry caustic process. In addition, $3.1 million in dedicated stores and other assets associated with the idled facility were written off. (See Note 5.)

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(15) PERMANENT SHUTDOWN AND SALE OF SCOTFORD, ALBERTA PLANT -

On December 2, 2005, OxyVinyls formally announced that the OxyVinyls PVC plant in Scotford, Alberta would close at the end of January 2006. The decision to shut down the facility was made due to the announced closure of the main raw materials supplier of the Scotford facility. OxyVinyls incurred expenses totaling $6.1 million related to the shutdown. These expenses included $4.1 million under OxyVinyls’ severance pay plan, $1.4 million in postretirement healthcare expenses and $.6 million for contract termination costs. (See Note 5.)

In June 2006, OxyVinyls sold its Scotford facility for approximately $8.7 million. OxyVinyls recorded a gain of $16.9 million on the sale, which included an adjustment to the asset retirement obligation reserve associated with the facility of $7.8 million and other reserve adjustments of $.4 million associated with the shutdown and sale of the facility. OxyVinyls recorded an additional loss of $.7 million on the sale in June 2007 related to stores inventory.

(16) VALUATION AND QUALIFYING ACCOUNTS -

Severance (income)/expense of $.2 million, $(.1) million and $.3 million was recorded for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005, respectively, for cost reduction and restructuring programs, and are reflected as selling, general and administrative and other operating expenses. Additional severance expense of $4.1 million was recorded during 2005 for the Scotford plant shutdown, and is reflected as restructuring and asset writedowns in the consolidated statement of operations. In 2006, a reversal of $.2 million reduced the Scotford accrual.

The following table presents the activity of certain valuation and qualifying accounts for the six months ended June 30, 2007 and the years ended December 31, 2006 and 2005 (in millions):


	Balance at								Balance at
	Beginning		Charged to						End of
	of Period		Expense			Deductions			Adjustment			Period
For the six months ended June 30, 2007:
Allowance for doubtful accounts	$	1.3	$	—		$	—		$	—		$	1.3
Severance and other obligations	$	.6	$	.2		$	(.7	)(a)	$	—		$	.1
Deferred tax valuation allowance	$	17.9	$	6.3		$	—		$	—		$	24.2

For the year ended December 31, 2006:
Allowance for doubtful accounts	$	1.9	$	—		$	(.6	)	$	—		$	1.3
Severance and other obligations	$	4.2	$	(.3	)	$	(3.3	)	$	—		$	.6
Deferred tax valuation allowance	$	17.4	$	.5		$	—		$	—		$	17.9

For the year ended December 31, 2005:
Allowance for doubtful accounts	$	—	$	—		$	(.2	)	$	2.1	(b)	$	1.9
Severance and other obligations	$	.3	$	4.4		$	(.5	)(a)	$	—		$	4.2
Deferred tax valuation allowance	$	3.0	$	14.4		$	—		$	—		$	17.4


(a)		Payments under the Partnership’s plan for termination and relocation of certain employees

(b)		Allowance balance transferred to/from an affiliate, OXY Receivables Corporation, net

OXY VINYLS, LP AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2007 and December 31, 2006

(17) SUBSEQUENT EVENTS -

On July 6, 2007, OCC PVC Compound purchased the 24 percent interest in OxyVinyls, owned by the PolyOne Limited Partner, for $261 million. Subsequent to the purchase, OxyVinyls is fully owned by subsidiaries of OCC.

OxyVinyls retains the existing PVC and VCM supply agreements with PolyOne, as well as various service and shared facilities agreements. (See Note 13.) OxyVinyls also retains the existing chlorine supply agreement with Sunbelt. (See Note 13.)

OxyMar paid the outstanding Bond principal of $6.8 million on August 15, 2007. (See Note 6.)

OxyVinyls and OxyMar terminated all loan arrangements with OPIC as of July 31, 2007, at which time the outstanding loan amounts were settled through capital contributions from the partners of OxyVinyls and OxyMar. (See Note 7.)

In July 2007, OPC completed the sale of its remaining shares of Lyondell common stock. OxyVinyls purchases ethylene from Equistar, a related party which is an affiliate of Lyondell. (See Note 13.)