Exhibit 99.1 Clayton Williams Energy Announces 2006 Second Quarter Results MIDLAND, Texas--(BUSINESS WIRE)--August 3, 2006--Clayton Williams Energy Inc. (NASDAQ:CWEI) reported net income for the second quarter of 2006 of $18 million, or $1.59 per share, as compared to net income of $10 million, or $.90 per share, for the second quarter of 2005. Cash flow from operations for the second quarter of 2006 was $39.5 million, as compared to $39.3 million during the same period in 2005. For the six months ended June 30, 2006, the Company reported net income of $21.3 million, or $1.89 per share, as compared to net income of $1 million, or $.09 per share, for the same period in 2005. Cash flow from operations for the six-month period in 2006 was $77 million, as compared to $69.3 million during the same period in 2005. Oil and gas sales for the second quarter of 2006 totaled $66.4 million compared to $63.3 million for the same quarter in 2005. Of the $3.1 million increase in oil and gas sales, higher oil and gas prices accounted for an increase of $10.1 million, which was largely offset by a $7 million decrease related to lower oil and gas production volumes. Oil production for the second quarter of 2006 decreased 10% to 555,000 barrels, or 6,099 barrels per day, from 615,000 barrels, or 6,758 barrels per day in the 2005 quarter. Gas production decreased 12% to 4 Bcf, or 44,132 Mcf per day, from 4.5 Bcf, or 49,967 Mcf per day in the 2005 quarter. Average realized oil prices in the second quarter of 2006 increased 33% from $50.35 to $66.78 per barrel, while gas prices increased 2% from $6.62 to $6.78 per Mcf. Average realized prices for 2006 and 2005 exclude the effects of any gains or losses realized on commodity hedging transactions since those derivatives were not designated as cash flow hedges and have been reported in the Company's statements of operations as gain/loss on derivatives under applicable accounting standards. Production costs for the second quarter of 2006 increased 15% to $15.9 million from $13.9 million in the 2005 quarter. On an Mcfe basis, production costs increased 30% from $1.60 per Mcfe for the 2005 quarter to $2.08 per Mcfe for the second quarter of 2006. For the second quarter of 2006, the Company reported a $245,000 net gain on derivatives, consisting of a $7.8 million non-cash gain to mark the Company's derivative positions to their fair value on June 30, 2006 which was mostly offset by a $7.5 million charge for cash settlements during the quarter. For the same period in 2005, the Company reported a $9.8 million net loss on derivatives, consisting of a $3.7 million non-cash mark-to-market loss and a $6.1 million charge for cash settlements. The Company will host a conference call to discuss these results and other forward-looking items today, August 3rd, at 1:30 p.m. CT (2:30 p.m. ET). The dial-in conference number is: 800-901-5213, passcode 59083952. The replay will be available for one week at 888-286-8010, passcode 12038883. To access the conference call via Internet webcast, please go to the Investor Relations section of the Company's website at www.claytonwilliams.com and click on "Live Webcast." Following the live webcast, the call will be archived for a period of 90 days on the Company's website. Clayton Williams Energy Inc. is an independent energy company located in Midland, Texas. Except for historical information, statements made in this release are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements are based on assumptions and estimates that management believes are reasonable based on currently available information; however, management's assumptions and the Company's future performance are subject to a wide range of business risks and uncertainties, and there is no assurance that these goals and projections can or will be met. Any number of factors could cause actual results to differ materially from those in the forward-looking statements, including, but not limited to, production variance from expectations, volatility of oil and gas prices, the need to develop and replace reserves, the substantial capital expenditures required to fund operations, exploration risks, uncertainties about estimates of reserves, competition, government regulation, costs and results of drilling new projects, and mechanical and other inherent risks associated with oil and gas production. These risks and uncertainties are described in the Company's filings with the Securities and Exchange Commission. The Company undertakes no obligation to publicly update or revise any forward-looking statements. CLAYTON WILLIAMS ENERGY INC. CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (In thousands, except per share) Three Months Ended Six Months Ended June 30, June 30, --------------------- --------------------- 2006 2005 2006 2005 ---------- ---------- ---------- ---------- REVENUES Oil and gas sales $66,443 $63,301 $126,624 $124,797 Natural gas services 2,789 2,550 5,985 5,131 Drilling rig services 374 -- 374 -- Gain on sales of property and equipment 735 467 752 2,079 ---------- ---------- ---------- ---------- Total revenues 70,341 66,318 133,735 132,007 ---------- ---------- ---------- ---------- COSTS AND EXPENSES Production 15,931 13,856 30,896 26,427 Exploration: Abandonments and impairments 3,329 6,430 16,172 17,700 Seismic and other 2,587 1,665 5,688 2,453 Natural gas services 2,261 2,374 5,090 4,791 Drilling rig services 216 -- 216 -- Depreciation, depletion and amortization 15,982 12,288 30,692 24,580 Accretion of abandonment obligations 417 288 796 567 General and administrative 4,252 3,134 8,319 5,652 Loss on sales of property and equipment -- -- 13 32 ---------- ---------- ---------- ---------- Total costs and expenses 44,975 40,035 97,882 82,202 ---------- ---------- ---------- ---------- Operating income 25,366 26,283 35,853 49,805 ---------- ---------- ---------- ---------- OTHER INCOME (EXPENSE) Interest expense (4,961) (2,566) (9,300) (4,932) Gain (loss) on derivatives 245 (9,837) (1,327) (44,926) Other 450 650 1,068 1,096 ---------- ---------- ---------- ---------- Total other income (expense) (4,266) (11,753) (9,559) (48,762) ---------- ---------- ---------- ---------- Income before income taxes 21,100 14,530 26,294 1,043 Income tax expense (3,094) (4,580) (4,912) (85) Minority interest (40) -- (40) -- ---------- ---------- ---------- ---------- NET INCOME $17,966 $9,950 $21,342 $958 ========== ========== ========== ========== Net income per common share: Basic $1.66 $0.92 $1.97 $0.09 ========== ========== ========== ========== Diluted $1.59 $0.90 $1.89 $0.09 ========== ========== ========== ========== Weighted average common shares outstanding: Basic 10,850 10,800 10,845 10,796 ========== ========== ========== ========== Diluted 11,286 11,089 11,294 11,068 ========== ========== ========== ========== CLAYTON WILLIAMS ENERGY INC. CONSOLIDATED BALANCE SHEETS (In thousands) ASSETS June 30, December 31, 2006 2005 ------------ ------------ (Unaudited) CURRENT ASSETS Cash and cash equivalents $16,869 $5,935 Accounts receivable: Oil and gas sales, net 23,648 28,317 Joint interest and other, net 10,561 6,972 Affiliates 1,248 254 Inventory 46,069 43,753 Deferred income taxes 426 439 Fair value of derivatives 3,850 191 Prepaids and other 1,987 2,581 ------------ ------------ 104,658 88,442 ------------ ------------ PROPERTY AND EQUIPMENT Oil and gas properties, successful efforts method 1,138,718 1,037,862 Natural gas gathering and processing systems 18,052 18,034 Contract drilling equipment 31,607 -- Other 14,862 12,396 ------------ ------------ 1,203,239 1,068,292 Less accumulated depreciation, depletion and amortization (624,914) (594,225) ------------ ------------ Property and equipment, net 578,325 474,067 ------------ ------------ OTHER ASSETS Debt issue costs 8,260 8,557 Advances to drilling rig joint venture -- 10,329 Fair value of derivatives 5,099 127 Other 15,886 5,813 ------------ ------------ 29,245 24,826 ------------ ------------ $712,228 $587,335 ============ ============ LIABILITIES AND STOCKHOLDERS' EQUITY CURRENT LIABILITIES Accounts payable: Trade $52,884 $59,861 Oil and gas sales 12,334 18,236 Affiliates 1,877 2,857 Current maturities of long-term debt 3,174 19 Fair value of derivatives 35,968 33,670 Accrued liabilities and other 9,952 9,611 ------------ ------------ 116,189 124,254 ------------ ------------ NON-CURRENT LIABILITIES Long-term debt 348,430 235,700 Deferred income taxes 41,919 37,042 Fair value of derivatives 41,755 49,705 Other 21,976 20,343 ------------ ------------ 454,080 342,790 ------------ ------------ STOCKHOLDERS' EQUITY: Preferred stock, par value $.10 per share -- -- Common stock, par value $.10 per share 1,085 1,082 Additional paid-in capital 107,431 107,108 Retained earnings 33,443 12,101 ------------ ------------ 141,959 120,291 ------------ ------------ $712,228 $587,335 ============ ============ CLAYTON WILLIAMS ENERGY INC. CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (In thousands) Three Months Ended Six Months Ended June 30, June 30, --------------------- -------------------- 2006 2005 2006 2005 ---------- ---------- ---------- --------- CASH FLOWS FROM OPERATING ACTIVITIES Net income $17,966 $9,950 $21,342 $958 Adjustments to reconcile net income to cash provided by operating activities: Depreciation, depletion and amortization 15,982 12,288 30,692 24,580 Exploration costs 3,329 6,430 16,172 17,700 Accretion of abandonment obligations 417 288 796 567 Gain on sales of property and equipment, net (735) (467) (739) (2,047) Deferred income taxes 3,094 4,607 4,912 (44) Non-cash employee compensation 546 387 1,151 720 Unrealized (gain) loss on derivatives (7,778) 3,769 (14,283) 35,221 Settlements on derivatives with financing elements 7,587 5,591 15,508 9,796 Amortization of debt issue costs 364 -- 735 -- Minority interest, net of tax 40 -- 40 -- Changes in operating working capital: Accounts receivable (3,960) 3,330 86 (1,137) Accounts payable (724) 1,339 143 (8,827) Other 3,384 (8,176) 493 (8,205) ---------- ---------- ---------- --------- Net cash provided by operating activities 39,512 39,336 77,048 69,282 ---------- ---------- ---------- --------- CASH FLOWS FROM INVESTING ACTIVITIES Additions to property and equipment (59,241) (40,187) (134,857) (79,001) Additions to equipment of Larclay JV (31,607) -- (31,607) -- Proceeds from sales of property and equipment 655 457 684 2,151 Other 6,585 (140) (886) (418) ---------- ---------- ---------- --------- Net cash used in investing activities (83,608) (39,870) (166,666) (77,268) ---------- ---------- ---------- --------- CASH FLOWS FROM FINANCING ACTIVITIES Proceeds from long-term debt 23,700 5,900 79,700 12,100 Proceeds from long-term debt of Larclay JV 36,197 -- 36,197 -- Repayments of other long-term debt (5) -- (12) -- Proceeds from sale of common stock -- -- 175 -- Settlements on derivatives with financing elements (7,587) (5,591) (15,508) (9,796) ---------- ---------- ---------- --------- Net cash provided by financing activities 52,305 309 100,552 2,304 ---------- ---------- ---------- --------- NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS 8,209 (225) 10,934 (5,682) CASH AND CASH EQUIVALENTS Beginning of period 8,660 10,902 5,935 16,359 ---------- ---------- ---------- --------- End of period $16,869 $10,677 $16,869 $10,677 ========== ========== ========== ========= Clayton Williams Energy Inc. Summary Production and Price Data (Unaudited) Three Months Ended Six Months Ended June 30, June 30, --------------------- --------------------- 2006 2005 2006 2005 ---------- ---------- ---------- ---------- Average Daily Production: Natural Gas (Mcf): Permian Basin 15,744 16,063 14,789 16,110 Louisiana 15,428 14,604 12,465 14,935 Austin Chalk (Trend) 2,757 2,103 3,007 2,329 Cotton Valley Reef Complex 9,723 16,618 10,576 17,312 Other 480 579 483 739 ---------- ---------- ---------- ---------- Total 44,132 49,967 41,320 51,425 ========== ========== ========== ========== Oil (Bbls): Permian Basin 3,274 3,281 3,244 3,305 Louisiana 933 1,494 1,011 1,485 Austin Chalk (Trend) 1,833 1,920 1,827 1,976 Other 59 63 51 52 ---------- ---------- ---------- ---------- Total 6,099 6,758 6,133 6,818 ========== ========== ========== ========== Natural gas liquids (Bbls): Permian Basin 227 220 244 227 Austin Chalk (Trend) 265 392 262 365 Other 57 124 35 143 ---------- ---------- ---------- ---------- Total 549 736 541 735 ========== ========== ========== ========== Total Production: Natural Gas (MMcf) 4,016 4,547 7,479 9,308 Oil (MBbls) 555 615 1,110 1,234 Natural gas liquids (MBbls) 50 67 98 133 ---------- ---------- ---------- ---------- Gas Equivalents (MMcfe) 7,646 8,639 14,727 17,510 Average Realized Prices(a): Gas ($/Mcf): $6.78 $6.62 $6.99 $6.41 ========== ========== ========== ========== Oil ($/Bbl): $66.78 $50.35 $63.41 $49.08 ========== ========== ========== ========== Natural gas liquids ($/Bbl) $37.56 $31.73 $38.21 $29.63 ========== ========== ========== ========== Losses on settled derivative contracts(a): ($ in thousands, except per unit) Gas: Net realized loss $(887) $(1,271) $(3,065) $(562) Per unit produced ($/Mcf) $(0.22) $(0.28) $(0.41) $(0.06) Oil: Net realized loss $(6,700) $(4,763) $(12,595) $(8,983) Per unit produced ($/Bbl) $(12.07) $(7.74) $(11.35) $(7.28) CLAYTON WILLIAMS ENERGY INC. Notes to tables and supplemental information (a) Hedging gains (losses) are only included in the determination of the Company's average realized prices if the underlying derivative contracts are designated as cash flow hedges under applicable accounting standards. The Company did not designate any of its 2006 or 2005 derivative contracts as cash flow hedges. This means that the Company's derivatives for 2006 and 2005 have been marked-to-market through its statement of operations as other income/expense instead of through accumulated other comprehensive income on the Company's balance sheet. This also means that all realized gains/losses on these derivatives are reported in other income/loss instead of as a component of oil and gas sales. (b) The accompanying consolidated financial statements include the accounts of Larclay JV, a drilling rig joint venture formed with Lariat Services, Inc. ("Lariat") in April 2006 to own and operate twelve new drilling rigs. Although the Company and Lariat own equal interests in Larclay JV, the Company meets the definition of the primary beneficiary of Larclay JV's expected cash flows under Financial Interpretation No. 46R, "Consolidation of Variable Interest Entities -- an interpretation of ARB No. 51 (as amended)" ("FIN 46R"). Accordingly, the Company is required to include the accounts of Larclay JV in the Company's consolidated financial statements. Lariat's net equity in the assets, liabilities and operations of Larclay JV are reflected as minority interest accounts in the Company's consolidated financial statements. The Company's share of all intercompany accounts with Larclay JV have been eliminated. (c) In May 2006, the State of Texas adopted House Bill 3, which modified the state's franchise tax structure, replacing the previous tax based on capital or earned surplus with a margin tax (the "Texas Margin Tax") effective with franchise tax reports filed on or after January 1, 2008. The Texas Margin Tax is computed by applying the applicable tax rate (1% for the Company's business sector) to the profit margin, which is generally determined by total revenue less either cost of goods sold or compensation, as applicable. Although House Bill 3 states that the Texas Margin Tax is not an income tax, the Company believes that Statement of Financial Accounting Standards No. 109 "Accounting for Income Taxes" ("SFAS 109") applies to the Texas Margin Tax. Accordingly, the Company has computed its consolidated deferred tax liability based on its current interpretation of the Texas Margin Tax, resulting in a reduction of deferred tax expense during the quarter ended June 30, 2006 of $4.1 million. The Company's effective federal and state income tax rate for the six months ended June 30, 2006 of 18.6% differed from the statutory federal rate of 35% due to reductions in the tax provision related to the adoption of the Texas Margin Tax and statutory depletion, offset in part by certain non-deductible expenses. CONTACT: Clayton Williams Energy Inc., Midland Patti Hollums, 432-688-3419 or Mel G. Riggs, 432-688-3431 cwei@claytonwilliams.com www.claytonwilliams.com