CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
ASSETS
Cash and Cash Equivalents	$ 3,813	$ 2,967
Accounts Receivable:
Oil and gas sales	57,635	35,867
Joint interest operations	23,032	15,534
Derivative Financial Instruments		970
Deferred Income Taxes	2,972
Other Current Assets	2,745	1,796
Total current assets	90,197	57,134
Property and Equipment:
Unevaluated oil and gas properties	178,384	134,350
Oil and gas properties, successful efforts method	4,046,243	3,781,313
Other	19,438	18,373
Accumulated depreciation, depletion and amortization	(2,050,567)	(1,867,301)
Net property and equipment	2,193,498	2,066,735
Other Assets	16,564	15,529
Total Assets	2,300,259	2,139,398
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts Payable	128,938	101,872
Deferred Income Taxes		339
Current Taxes Payable	102	1,487
Derivative Financial Instruments	8,492
Accrued Liabilities	42,135	91,297
Total current liabilities	179,667	194,995
Long-term Debt	975,151	798,700
Deferred Income Taxes	183,274	177,026
Reserve for Future Abandonment Costs	15,630	14,534
Other Non-Current Liabilities	1,803	2,138
Total liabilities	1,355,525	1,187,393
Commitments and Contingencies
Stockholders’ Equity:
Common stock – $0.50 par, 75,000,000 shares authorized, 47,864,249 and 47,680,516 shares outstanding at June 30, 2014 and December 31, 2013, respectively	23,932	23,840
Additional paid-in capital	482,353	480,816
Retained earnings	438,449	447,349
Total stockholders’ equity	944,734	952,005
Total liabilities and stockholders' equity	$ 2,300,259	$ 2,139,398