Year Ended December 31,
	2006				2005							2004
Cash Flows from Operating Activities:
Net income	$	161,565,340			$		115,778,456					$				68,450,917
Adjustments to reconcile net income to net cash provided
by operating activities-
Depreciation, depletion, and amortization		169,295,774					107,477,787									81,580,828
Accretion of asset retirement obligation		1,034,322					761,042									673,654
Deferred income taxes		90,027,972					61,911,095									32,513,325
Stock-based compensation expense		6,905,260					1,450,600									57,709
Debt retirement cost – cash and non-cash		---					---									9,536,268
Other		3,225,561					362,013									(357,164)
Change in assets and liabilities-
Increase in accounts receivable		(19,178,818)					(6,778,383)									(11,040,543)
Increase in accounts payable and accrued liabilities		10,905,914					5,071,870									843,341
Increase (decrease) in income taxes payable		883,639					---									(135,984)
Increase (decrease) in accrued interest		256,082					(700,996)									460,536
		-------------------------					-------------------------									-------------------------
Net Cash Provided by Operating Activities		424,921,046					285,333,484									182,582,887
		-------------------------					-------------------------									-------------------------
Cash Flows from Investing Activities:
Additions to property and equipment		(363,222,113)					(235,547,815)									(171,095,101)
Proceeds from the sale of property and equipment		24,678,020					7,296,833									5,058,147
Acquisition of properties		(194,269,399)					(28,927,091)									(27,196,336)
Net cash received as operator of oil and gas properties		9,385,700					17,797,022									3,921,673
Net cash received (distributed) as operator of partnerships		409,816					(948,292)								884,093
Other		(528,415)					255,189								(658,630)
		-------------------------					-------------------------								-------------------------
Net Cash Used in Investing Activities		(523,546,391)					(240,074,154)								(189,086,154)
		-------------------------					-------------------------									-------------------------
Cash Flows from Financing Activities:
Proceeds from long-term debt		---					---									150,000,000
Payments of long-term debt		---					---									(125,000,000)
Net proceeds from (payments of) bank borrowings		31,400,000					(7,500,000)									(8,400,000)
Net proceeds from issuances of common stock		12,508,621					10,325,114									4,825,251
Excess tax benefits from stock-based awards		3,327,713						---							---
Payments of debt retirement costs		---						---							(6,734,611)
Payments of debt issuance costs		(557,500)						---							(4,333,535)
		-------------------------					-------------------------									-------------------------
Net Cash Provided by Financing Activities		46,678,834					2,825,114									10,357,105
		-------------------------					-------------------------									-------------------------
Net Increase (Decrease) in Cash and Cash Equivalents	$	(51,946,511)			$		48,084,444					$				3,853,838
Cash and Cash Equivalents at Beginning of Year		53,004,562					4,920,118									1,066,280
		-------------------------					-------------------------									-------------------------
Cash and Cash Equivalents at End of Year	$	1,058,051			$		53,004,562					$				4,920,118
		=============					=============									=============
Supplemental Disclosures of Cash Flows Information:
Cash paid during year for interest, net of amounts capitalized	$	22,690,797			$		24,482,934					$				26,064,158
Cash paid during year for income taxes	$	9,779,500			$		750,000					$				476,000