|
Supplemental Information on Natural Gas and Oil Exploration, Development and Production Activities (Unaudited) (Tables)
|
12 Months Ended |
|
Dec. 31, 2013
|
| Capitalized Costs and Accumulated Depreciation, Depletion and Amortization |
Capitalized Costs and Accumulated Depreciation, Depletion and Amortization (a)
|
December 31, |
|
|
2013 |
|
|
2012 |
|
|
2011 |
|
|
(in thousands) |
|
Natural gas and oil properties: |
|
|
|
|
|
|
|
|
|
|
|
Properties subject to depletion |
$ |
8,225,859 |
|
|
$ |
7,368,308 |
|
|
$ |
6,035,429 |
|
Unproved properties |
|
807,022 |
|
|
|
743,467 |
|
|
|
748,598 |
|
Total |
|
9,032,881 |
|
|
|
8,111,775 |
|
|
|
6,784,027 |
|
Accumulated depreciation, depletion and amortization |
|
(2,274,444 |
) |
|
|
(2,015,591 |
) |
|
|
(1,626,461 |
) |
Net capitalized costs |
$ |
6,758,437 |
|
|
$ |
6,096,184 |
|
|
$ |
5,157,566 |
|
(a) | Includes capitalized asset retirement costs and the associated accumulated amortization. |
|
| Costs Incurred for Property Acquisition, Exploration and Development |
Costs Incurred for Property Acquisition, Exploration and Development (a)
|
December 31, |
|
|
2013 |
|
|
2012 |
|
|
2011 |
|
|
(in thousands) |
|
Acreage purchases |
$ |
137,538 |
|
|
$ |
188,843 |
|
|
$ |
220,576 |
|
Development |
|
938,668 |
|
|
|
1,049,129 |
|
|
|
1,007,049 |
|
Exploration: |
|
|
|
|
|
|
|
|
|
|
|
Drilling |
|
189,742 |
|
|
|
309,816 |
|
|
|
226,920 |
|
Expense |
|
60,384 |
|
|
|
65,758 |
|
|
|
77,259 |
|
Stock-based compensation expense |
|
4,025 |
|
|
|
4,049 |
|
|
|
4,108 |
|
Gas gathering facilities: |
|
|
|
|
|
|
|
|
|
|
|
Development |
|
47,086 |
|
|
|
41,035 |
|
|
|
53,387 |
|
Subtotal |
|
1,377,443 |
|
|
|
1,658,630 |
|
|
|
1,589,299 |
|
Asset retirement obligations |
|
76,373 |
|
|
|
57,982 |
|
|
|
24,061 |
|
Total – continuing operations |
|
1,453,816 |
|
|
|
1,716,612 |
|
|
|
1,613,360 |
|
Discontinued operations |
|
¾ |
|
|
|
— |
|
|
|
3,241 |
|
Total costs incurred |
$ |
1,453,816 |
|
|
$ |
1,716,612 |
|
|
$ |
1,616,601 |
|
(a) | Includes cost incurred whether capitalized or expensed. |
|
| Proved Developed and Undeveloped Reserves |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Natural Gas |
|
|
NGLs |
|
|
Crude Oil and Condensate |
|
|
Natural Gas
Equivalents |
|
|
(Mmcf) |
|
|
(Mbbls) |
|
|
(Mbbls) |
|
|
(Mmcfe) |
|
Proved developed and undeveloped reserves: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Balance, December 31, 2010 (b) |
|
3,566,526 |
|
|
|
122,722 |
|
|
|
23,239 |
|
|
|
4,442,290 |
|
Revisions |
|
73,643 |
|
|
|
18,627 |
|
|
|
6,522 |
|
|
|
224,542 |
|
Extensions, discoveries and additions |
|
1,304,324 |
|
|
|
26,591 |
|
|
|
4,915 |
|
|
|
1,493,357 |
|
Purchases |
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
Property sales |
|
(777,816 |
) |
|
|
(19,852 |
) |
|
|
(1,176 |
) |
|
|
(903,983 |
) |
Production |
|
(157,001 |
) |
|
|
(5,573 |
) |
|
|
(1,968 |
) |
|
|
(202,245 |
) |
Balance, December 31, 2011 |
|
4,009,676 |
|
|
|
142,515 |
|
|
|
31,532 |
|
|
|
5,053,961 |
|
Revisions |
|
76,925 |
|
|
|
3,036 |
|
|
|
2,316 |
|
|
|
109,036 |
|
Extensions, discoveries and additions |
|
996,059 |
|
|
|
113,392 |
|
|
|
15,131 |
|
|
|
1,767,202 |
|
Purchases |
|
— |
|
|
|
— |
|
|
|
— |
|
|
|
— |
|
Property sales |
|
(73,429 |
) |
|
|
(11,575 |
) |
|
|
(1,046 |
) |
|
|
(149,153 |
) |
Production |
|
(216,555 |
) |
|
|
(6,969 |
) |
|
|
(2,851 |
) |
|
|
(275,476 |
) |
Balance, December 31, 2012 |
|
4,792,676 |
|
|
|
240,399 |
|
|
|
45,082 |
|
|
|
6,505,570 |
|
Revisions |
|
384,825 |
|
|
|
7,743 |
|
|
|
2,935 |
|
|
|
448,898 |
|
Extensions, discoveries and additions |
|
853,746 |
|
|
|
135,810 |
|
|
|
10,723 |
|
|
|
1,732,944 |
|
Purchases |
|
¾ |
|
|
|
¾ |
|
|
|
¾ |
|
|
|
¾ |
|
Property sales |
|
(101,074 |
) |
|
|
(286 |
) |
|
|
(6,553 |
) |
|
|
(142,116 |
) |
Production |
|
(264,528 |
) |
|
|
(9,254 |
) |
|
|
(3,827 |
) |
|
|
(343,022 |
) |
Balance, December 31, 2013 |
|
5,665,645 |
|
|
|
374,412 |
|
|
|
48,360 |
|
|
|
8,202,274 |
|
Proved developed reserves: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2011 |
|
1,907,209 |
|
|
|
64,472 |
|
|
|
17,872 |
|
|
|
2,401,274 |
|
December 31, 2012 |
|
2,373,604 |
|
|
|
154,984 |
|
|
|
25,667 |
|
|
|
3,457,502 |
|
December 31, 2013 |
|
2,797,483 |
|
|
|
206,477 |
|
|
|
26,054 |
|
|
|
4,192,666 |
|
Proved undeveloped reserves: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
December 31, 2011 |
|
2,102,467 |
|
|
|
78,043 |
|
|
|
13,660 |
|
|
|
2,652,687 |
|
December 31, 2012 |
|
2,419,072 |
|
|
|
85,415 |
|
|
|
19,415 |
|
|
|
3,048,068 |
|
December 31, 2013 |
|
2,868,162 |
|
|
|
167,935 |
|
|
|
22,306 |
|
|
|
4,009,608 |
|
(a) | Oil and NGLs are converted to mcfe at the rate of one barrel equals six mcf based upon the approximate relative energy content of oil to natural gas, which is not necessarily indicative of the relationship of oil and natural gas prices. |
(b) | Total proved reserves at December 31, 2010 includes 906,371 Mmcfe related to discontinued operations of which 408,710 Mmcfe is proved undeveloped. |
|
| Changes in Proved Undeveloped Reserves for 2013 (Mmcfe) |
The following details the changes in proved undeveloped reserves for 2013 (Mmcfe):
Beginning proved undeveloped reserves at December 31, 2012 |
|
3,048,068 |
|
Undeveloped reserves transferred to developed |
|
(433,526 |
) |
Revisions |
|
233,763 |
|
Purchases/sales |
|
(23,362 |
) |
Extension and discoveries |
|
1,184,665 |
|
Ending proved undeveloped reserves at December 31, 2013 |
|
4,009,608 |
|
|
| Standardized Measure of Discounted Future Net Cash Flows |
The standardized measure of discounted future net cash flows relating to proved natural gas, NGLs, crude oil and condensate reserves is as follows and excludes cash flows associated with derivatives outstanding at each of the respective reporting dates. Future cash inflows are net of third party transportation, gathering and compression expense.
|
As of December 31, |
|
|
2013 |
|
|
2012 |
|
|
(in thousands) |
|
Future cash inflows |
$ |
35,143,097 |
|
|
$ |
24,851,589 |
|
Future costs: |
|
|
|
|
|
|
|
Production |
|
(10,176,140 |
) |
|
|
(10,028,359 |
) |
Development |
|
(3,938,296 |
) |
|
|
(3,667,672 |
) |
Future net cash flows before income taxes |
|
21,028,661 |
|
|
|
11,155,558 |
|
Future income tax expense |
|
(6,913,196 |
) |
|
|
(3,081,918 |
) |
Total future net cash flows before 10% discount |
|
14,115,465 |
|
|
|
8,073,640 |
|
10% annual discount |
|
(8,253,234 |
) |
|
|
(4,849,835 |
) |
Standardized measure of discounted future net cash flows |
$ |
5,862,231 |
|
|
$ |
3,223,805 |
|
|
| Changes in Discounted Future Net Cash Flows |
The following table summarizes changes in the standardized measure of discounted future net cash flows.
|
December 31, |
|
|
2013 |
|
|
2012 |
|
|
2011 |
|
|
(in thousands) |
|
Revisions of previous estimates: |
|
|
|
|
|
|
|
|
|
|
|
Changes in prices |
$ |
2,172,704 |
|
|
$ |
(2,498,616 |
) |
|
$ |
422,080 |
|
Revisions in quantities |
|
513,168 |
|
|
|
88,190 |
|
|
|
326,240 |
|
Changes in future development costs |
|
(275,468 |
) |
|
|
(354,766 |
) |
|
|
(346,378 |
) |
Accretion of discount |
|
395,989 |
|
|
|
608,381 |
|
|
|
464,735 |
|
Net change in income taxes |
|
(1,299,227 |
) |
|
|
832,830 |
|
|
|
(400,690 |
) |
Purchases of reserves in place |
|
¾ |
|
|
|
— |
|
|
|
— |
|
Additions to proved reserves from extensions, discoveries and improved recovery |
|
1,981,054 |
|
|
|
1,429,340 |
|
|
|
2,169,706 |
|
Production |
|
(1,286,103 |
) |
|
|
(976,224 |
) |
|
|
(911,873 |
) |
Development costs incurred during the period |
|
462,862 |
|
|
|
562,329 |
|
|
|
513,551 |
|
Sales of natural gas and oil |
|
(162,463 |
) |
|
|
(120,637 |
) |
|
|
(1,313,401 |
) |
Timing and other |
|
135,910 |
|
|
|
(861,919 |
) |
|
|
111,801 |
|
Net change for the year |
|
2,638,426 |
|
|
|
(1,291,092 |
) |
|
|
1,035,771 |
|
Beginning of year |
|
3,223,805 |
|
|
|
4,514,897 |
|
|
|
3,479,126 |
|
End of year |
$ |
5,862,231 |
|
|
$ |
3,223,805 |
|
|
$ |
4,514,897 |
|
|