2004

New

Domestic

Zealand

Total

Oil and gas sales

$

258,663,936

$

52,621,236

$

311,285,172

Costs and Expenses:

   Depreciation, depletion, and amortization

(62,283,350)

(19,297,478)

(81,580,828)

   Accretion of asset retirement obligation

(505,174)

(168,480)

(673,654)

   Lease operating cost

(30,191,889)

(11,022,367)

(41,214,256)

   Severance and other taxes

(26,713,592)

(3,687,701)

(30,401,293)

--------------------

--------------------

--------------------

Income from oil and gas operations

$

138,969,931

$

18,445,210

$

157,415,141

   Price-risk management and other, net

(1,008,398)

   General and administrative, net

(17,787,125)

   Interest expense, net

(27,643,108)

   Debt retirement costs

(9,536,268)

--------------------

Income before Income Taxes and Change

   in Accounting Principle

$

101,440,242

===========

Property and Equipment, net

$

731,890,068

$

191,548,092

$

923,438,160

Total Assets

778,611,100

211,962,047

990,573,147

Capital Expenditures

$

162,535,617

$

35,755,820

$

198,291,437

===========

===========

===========

2003

New

Domestic

Zealand

Total

Oil and gas sales

$

164,167,390

$

46,865,249

$

211,032,639

Costs and Expenses:

   Depreciation, depletion, and amortization

(44,645,939)

(18,426,118)

(63,072,057)

   Accretion of asset retirement obligation

(623,948)

(233,408)

(857,356)

   Lease operating cost

(24,022,412)

(9,810,786)

(33,833,198)

   Severance and other taxes

(15,290,669)

(3,742,935)

(19,033,604)

--------------------

--------------------

--------------------

Income from oil and gas operations

$

79,584,422

$

14,652,002

$

94,236,424

   Price-risk management and other, net

(2,131,656)

   General and administrative, net

(14,097,066)

   Interest expense, net

(27,268,524)

--------------------

Income before Income Taxes and Change

in Accounting Principle

$

50,739,178

===========

Property and Equipment, net

$

641,366,888

$

174,440,115

$

815,807,003

Total Assets

672,721,551

187,116,993

859,838,544

Capital Expenditures

$

114,443,475

$

30,059,705

$

144,503,180

===========

===========

===========

2002

New

Domestic

Zealand

Total

Oil and gas sales

$

112,065,003

$

29,130,710

$

141,195,713

Costs and Expenses:

   Depreciation, depletion, and amortization

(43,660,843)

(12,563,549)

(56,224,392)

   Lease operating costs

(23,308,444)

(5,610,414)

(28,918,858)

   Severance and other taxes

(9,780,514)

(2,797,940)

(12,578,454)

Income from oil and gas operations

$

35,315,202

$

8,158,807

$

43,474,009

   Gain on asset disposition

7,332,668

   Price-risk management and other, net

1,441,430

   General and administrative, net

(10,564,849)

   Interest expense, net

(23,274,969)

Income before Income Taxes and Change

in Accounting Principle

$

18,408,289

===========

Property and Equipment, net

$

565,149,393

$

160,360,061

$

725,509,454

Total Assets

594,627,972

172,377,887

767,005,859

Capital Expenditures

$

59,981,376

$

95,252,547

$

155,233,923

===========

===========

===========