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Oil and Gas Exploration and Production Industries Disclosures (Tables)
 12 Months Ended
Dec. 31, 2013
Oil and Gas Exploration and Production Industries Disclosures [Abstract]  
Net Proved and Proved Developed Oil and Gas Reserve Quantities [Table Text Block]
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following tables set forth EOG's net proved and proved developed reserves at December 31 for each of the four years in the period ended December 31, 2013, and the changes in the net proved reserves for each of the three years in the period ended December 31, 2013, as estimated by the Engineering and Acquisitions Department of EOG:

NET PROVED AND PROVED DEVELOPED RESERVE SUMMARY


 
 
United
States
  
Canada
  
Trinidad
  
Other
International (1)
  
Total
 
 
 
  
  
  
  
 
NET PROVED RESERVES
 
  
  
  
  
 
 
 
  
  
  
  
 
Crude Oil (MBbl) (2)
 
  
  
  
  
 
Net proved reserves at December 31, 2010
  
355,457
   
25,636
   
4,731
   
98
   
385,922
 
Revisions of previous estimates
  
(21,188
)
  
(4,611
)
  
18
   
25
   
(25,756
)
Purchases in place
  
9
   
-
   
-
   
-
   
9
 
Extensions, discoveries and other additions
  
202,552
   
449
   
-
   
-
   
203,001
 
Sales in place
  
(4,301
)
  
-
   
-
   
-
   
(4,301
)
Production
  
(37,233
)
  
(2,882
)
  
(1,242
)
  
(25
)
  
(41,382
)
Net proved reserves at December 31, 2011
  
495,296
   
18,592
   
3,507
   
98
   
517,493
 
Revisions of previous estimates
  
4,105
   
(2,493
)
  
71
   
5
   
1,688
 
Purchases in place
  
1,010
   
-
   
-
   
-
   
1,010
 
Extensions, discoveries and other additions
  
241,171
   
5,681
   
-
   
8,834
   
255,686
 
Sales in place
  
(15,921
)
  
(1,343
)
  
-
   
-
   
(17,264
)
Production
  
(54,632
)
  
(2,574
)
  
(550
)
  
(39
)
  
(57,795
)
Net proved reserves at December 31, 2012
  
671,029
   
17,863
   
3,028
   
8,898
   
700,818
 
Revisions of previous estimates
  
57,668
   
(5,866
)
  
(991
)
  
(142
)
  
50,669
 
Purchases in place
  
1,097
   
-
   
-
   
-
   
1,097
 
Extensions, discoveries and other additions
  
230,023
   
673
   
-
   
58
   
230,754
 
Sales in place
  
(2,337
)
  
-
   
-
   
-
   
(2,337
)
Production
  
(77,431
)
  
(2,550
)
  
(447
)
  
(33
)
  
(80,461
)
Net proved reserves at December 31, 2013
  
880,049
   
10,120
   
1,590
   
8,781
   
900,540
 
 
                    
Natural Gas Liquids (MBbl) (2)
                    
Net proved reserves at December 31, 2010
  
150,434
   
1,475
   
-
   
-
   
151,909
 
Revisions of previous estimates
  
35,999
   
43
   
-
   
-
   
36,042
 
Purchases in place
  
17
   
-
   
-
   
-
   
17
 
Extensions, discoveries and other additions
  
65,288
   
-
   
-
   
-
   
65,288
 
Sales in place
  
(10,008
)
  
-
   
-
   
-
   
(10,008
)
Production
  
(15,144
)
  
(316
)
  
-
   
-
   
(15,460
)
Net proved reserves at December 31, 2011
  
226,586
   
1,202
   
-
   
-
   
227,788
 
Revisions of previous estimates
  
47,293
   
563
   
-
   
-
   
47,856
 
Purchases in place
  
612
   
-
   
-
   
-
   
612
 
Extensions, discoveries and other additions
  
71,396
   
178
   
-
   
-
   
71,574
 
Sales in place
  
(7,300
)
  
(77
)
  
-
   
-
   
(7,377
)
Production
  
(20,181
)
  
(309
)
  
-
   
-
   
(20,490
)
Net proved reserves at December 31, 2012
  
318,406
   
1,557
   
-
   
-
   
319,963
 
Revisions of previous estimates
  
12,157
   
(48
)
  
-
   
-
   
12,109
 
Purchases in place
  
1,202
   
-
   
-
   
-
   
1,202
 
Extensions, discoveries and other additions
  
69,187
   
10
   
-
   
-
   
69,197
 
Sales in place
  
(1,471
)
  
-
   
-
   
-
   
(1,471
)
Production
  
(23,479
)
  
(315
)
  
-
   
-
   
(23,794
)
Net proved reserves at December 31, 2013
  
376,002
   
1,204
   
-
   
-
   
377,206
 



EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)


 
 
United
States
  
Canada
  
Trinidad
  
Other
International (1)
  
Total
 
 
 
  
  
  
  
 
Natural Gas (Bcf) (3)
 
  
  
  
  
 
Net proved reserves at December 31, 2010
  
6,491.5
   
1,133.8
   
827.6
   
17.3
   
8,470.2
 
Revisions of previous estimates
  
(344.0
)
  
(49.8
)
  
(24.2
)
  
1.3
   
(416.7
)
Purchases in place
  
3.0
   
-
   
-
   
-
   
3.0
 
Extensions, discoveries and other additions
  
634.6
   
-
   
74.7
   
4.5
   
713.8
 
Sales in place
  
(323.6
)
  
-
   
-
   
-
   
(323.6
)
Production
  
(415.7
)
  
(48.1
)
  
(127.4
)
  
(4.6
)
  
(595.8
)
Net proved reserves at December 31, 2011
  
6,045.8
   
1,035.9
   
750.7
   
18.5
   
7,850.9
 
Revisions of previous estimates
  
(1,736.0
)
  
(894.5
)
  
(24.1
)
  
1.6
   
(2,653.0
)
Purchases in place
  
14.8
   
-
   
-
   
-
   
14.8
 
Extensions, discoveries and other additions
  
477.8
   
-
   
-
   
0.3
   
478.1
 
Sales in place
  
(386.2
)
  
(8.5
)
  
-
   
-
   
(394.7
)
Production
  
(380.2
)
  
(34.6
)
  
(138.4
)
  
(3.4
)
  
(556.6
)
Net proved reserves at December 31, 2012
  
4,036.0
   
98.3
   
588.2
   
17.0
   
4,739.5
 
Revisions of previous estimates
  
264.0
   
31.4
   
(17.4
)
  
(0.7
)
  
277.3
 
Purchases in place
  
5.7
   
-
   
-
   
-
   
5.7
 
Extensions, discoveries and other additions
  
504.7
   
0.1
   
79.5
   
9.8
   
594.1
 
Sales in place
  
(69.4
)
  
-
   
-
   
-
   
(69.4
)
Production
  
(342.3
)
  
(27.7
)
  
(129.6
)
  
(2.8
)
  
(502.4
)
Net proved reserves at December 31, 2013
  
4,398.7
   
102.1
   
520.7
   
23.3
   
5,044.8
 
 
                    
Oil Equivalents (MBoe) (2)
                    
Net proved reserves at December 31, 2010
  
1,587,806
   
216,084
   
142,669
   
2,976
   
1,949,535
 
Revisions of previous estimates
  
(42,526
)
  
(12,865
)
  
(4,011
)
  
239
   
(59,163
)
Purchases in place
  
521
   
-
   
-
   
-
   
521
 
Extensions, discoveries and other additions
  
373,602
   
448
   
12,455
   
750
   
387,255
 
Sales in place
  
(68,247
)
  
-
   
-
   
-
   
(68,247
)
Production
  
(121,648
)
  
(11,219
)
  
(22,484
)
  
(787
)
  
(156,138
)
Net proved reserves at December 31, 2011
  
1,729,508
   
192,448
   
128,629
   
3,178
   
2,053,763
 
Revisions of previous estimates
  
(237,936
)
  
(151,015
)
  
(3,953
)
  
283
   
(392,621
)
Purchases in place
  
4,098
   
-
   
-
   
-
   
4,098
 
Extensions, discoveries and other additions
  
392,196
   
5,860
   
-
   
8,876
   
406,932
 
Sales in place
  
(87,588
)
  
(2,832
)
  
-
   
-
   
(90,420
)
Production
  
(138,170
)
  
(8,657
)
  
(23,616
)
  
(611
)
  
(171,054
)
Net proved reserves at December 31, 2012
  
1,662,108
   
35,804
   
101,060
   
11,726
   
1,810,698
 
Revisions of previous estimates
  
113,823
   
(676
)
  
(3,892
)
  
(265
)
  
108,990
 
Purchases in place
  
3,241
   
-
   
-
   
-
   
3,241
 
Extensions, discoveries and other additions
  
383,324
   
693
   
13,245
   
1,703
   
398,965
 
Sales in place
  
(15,375
)
  
-
   
-
   
-
   
(15,375
)
Production
  
(157,955
)
  
(7,482
)
  
(22,049
)
  
(490
)
  
(187,976
)
Net proved reserves at December 31, 2013
  
1,989,166
   
28,339
   
88,364
   
12,674
   
2,118,543
 

(1)Other International includes EOG's United Kingdom, China and Argentina operations.
(2)Thousand barrels or thousand barrels of oil equivalent, as applicable; oil equivalents include crude oil and condensate, NGLs and natural gas. Oil equivalents are determined using the ratio of 1.0 barrel of crude oil and condensate or NGLs to 6.0 thousand cubic feet of natural gas.
(3)Billion cubic feet.
 
Net Proved Developed and Net Proved Undeveloped Oil and Gas Reserve Quantities [Table Text Block]
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

 
 
United
States
  
Canada
  
Trinidad
  
Other
International (1)
  
Total
 
 
 
  
  
  
  
 
NET PROVED DEVELOPED RESERVES
 
  
  
  
  
 
 
 
  
  
  
  
 
Crude Oil (MBbl)
 
  
  
  
  
 
December 31, 2010
  
161,907
   
11,283
   
3,852
   
98
   
177,140
 
December 31, 2011
  
213,872
   
8,128
   
2,657
   
98
   
224,755
 
December 31, 2012
  
281,167
   
6,853
   
2,377
   
253
   
290,650
 
December 31, 2013
  
382,517
   
6,871
   
1,505
   
163
   
391,056
 
Natural Gas Liquids (MBbl)
                    
December 31, 2010
  
91,401
   
1,475
   
-
   
-
   
92,876
 
December 31, 2011
  
124,271
   
1,092
   
-
   
-
   
125,363
 
December 31, 2012
  
161,482
   
1,111
   
-
   
-
   
162,593
 
December 31, 2013
  
199,964
   
896
   
-
   
-
   
200,860
 
Natural Gas (Bcf)
                    
December 31, 2010
  
3,519.7
   
401.6
   
519.2
   
17.3
   
4,457.8
 
December 31, 2011
  
3,235.0
   
295.8
   
606.3
   
18.5
   
4,155.6
 
December 31, 2012
  
2,387.5
   
98.3
   
476.7
   
17.0
   
2,979.5
 
December 31, 2013
  
2,597.3
   
102.1
   
494.6
   
19.4
   
3,213.4
 
Oil Equivalents (MBoe)
                    
December 31, 2010
  
839,928
   
79,701
   
90,382
   
2,976
   
1,012,987
 
December 31, 2011
  
877,301
   
58,524
   
103,710
   
3,178
   
1,042,713
 
December 31, 2012
  
840,564
   
24,348
   
81,826
   
3,081
   
949,819
 
December 31, 2013
  
1,015,359
   
24,782
   
83,933
   
3,402
   
1,127,476
 
 
                    
 
                    
NET PROVED UNDEVELOPED RESERVES
                    
 
                    
Crude Oil (MBbl)
                    
December 31, 2010
  
193,550
   
14,353
   
879
   
-
   
208,782
 
December 31, 2011
  
281,424
   
10,464
   
850
   
-
   
292,738
 
December 31, 2012
  
389,862
   
11,010
   
651
   
8,645
   
410,168
 
December 31, 2013
  
497,532
   
3,249
   
85
   
8,618
   
509,484
 
Natural Gas Liquids (MBbl)
                    
December 31, 2010
  
59,033
   
-
   
-
   
-
   
59,033
 
December 31, 2011
  
102,315
   
110
   
-
   
-
   
102,425
 
December 31, 2012
  
156,924
   
446
   
-
   
-
   
157,370
 
December 31, 2013
  
176,038
   
308
   
-
   
-
   
176,346
 
Natural Gas (Bcf)
                    
December 31, 2010
  
2,971.8
   
732.2
   
308.4
   
-
   
4,012.4
 
December 31, 2011
  
2,810.8
   
740.1
   
144.4
   
-
   
3,695.3
 
December 31, 2012
  
1,648.5
   
-
   
111.5
   
-
   
1,760.0
 
December 31, 2013
  
1,801.4
   
-
   
26.1
   
3.9
   
1,831.4
 
Oil Equivalents (MBoe)
                    
December 31, 2010
  
747,878
   
136,383
   
52,287
   
-
   
936,548
 
December 31, 2011
  
852,207
   
133,924
   
24,919
   
-
   
1,011,050
 
December 31, 2012
  
821,544
   
11,456
   
19,234
   
8,645
   
860,879
 
December 31, 2013
  
973,807
   
3,557
   
4,431
   
9,272
   
991,067
 

(1)Other International includes EOG's United Kingdom, China and Argentina operations.
Capitalized Costs Relating to Oil an d Gas Producing Activities
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Capitalized Costs Relating to Oil and Gas Producing Activities.  The following table sets forth the capitalized costs relating to EOG's crude oil and natural gas producing activities at December 31, 2013 and 2012:

 
 
2013
  
2012
 
 
 
  
 
Proved properties
 
$
41,377,303
  
$
36,872,434
 
Unproved properties
  
1,444,500
   
1,253,864
 
Total
  
42,821,803
   
38,126,298
 
Accumulated depreciation, depletion and amortization
  
(18,880,611
)
  
(16,849,068
)
Net capitalized costs
 
$
23,941,192
  
$
21,277,230
 
Costs Incurred in Oil and Gas Property Acquisition, Exploration and Development Activities
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following table sets forth costs incurred related to EOG's oil and gas activities for the years ended December 31, 2013, 2012 and 2011:

 
 
United
States
  
Canada
  
Trinidad
  
Other
International (1)
  
Total
 
 
 
  
  
  
  
 
2013
 
  
  
  
  
 
Acquisition Costs of Properties
 
  
  
  
  
 
Unproved
 
$
411,556
  
$
2,565
  
$
-
  
$
-
  
$
414,121
 
Proved
  
120,220
   
(6
)
  
-
   
-
   
120,214
 
Subtotal
  
531,776
   
2,559
   
-
   
-
   
534,335
 
Exploration Costs
  
273,788
   
19,660
   
16,060
   
67,671
   
377,179
 
Development Costs (2)
  
5,573,260
   
149,426
   
124,231
   
239,460
   
6,086,377
 
Total
 
$
6,378,824
  
$
171,645
  
$
140,291
  
$
307,131
  
$
6,997,891
 
 
                    
2012
                    
Acquisition Costs of Properties
                    
Unproved
 
$
471,345
  
$
33,561
  
$
1,000
  
$
(603
)
 
$
505,303
 
Proved
  
739
   
-
   
-
   
-
   
739
 
Subtotal
  
472,084
   
33,561
   
1,000
   
(603
)
  
506,042
 
Exploration Costs
  
333,534
   
38,530
   
19,555
   
53,979
   
445,598
 
Development Costs (3)
  
5,657,378
   
278,995
   
32,609
   
147,568
   
6,116,550
 
Total
 
$
6,462,996
  
$
351,086
  
$
53,164
  
$
200,944
  
$
7,068,190
 
 
                    
2011
                    
Acquisition Costs of Properties
                    
Unproved
 
$
295,160
  
$
6,216
  
$
-
  
$
(604
)
 
$
300,772
 
Proved
  
4,219
   
28
   
-
   
-
   
4,247
 
Subtotal
  
299,379
   
6,244
   
-
   
(604
)
  
305,019
 
Exploration Costs
  
311,369
   
31,472
   
2,549
   
18,164
   
363,554
 
Development Costs (4)
  
5,410,378
   
302,564
   
138,905
   
78,744
   
5,930,591
 
Total
 
$
6,021,126
  
$
340,280
  
$
141,454
  
$
96,304
  
$
6,599,164
 

(1)Other International primarily consists of EOG's United Kingdom, China and Argentina operations.
(2)Includes Asset Retirement Costs of $84 million, $13 million and $37 million for the United States, Canada and Other International, respectively.  Excludes other property, plant and equipment.
(3)Includes Asset Retirement Costs of $80 million, $33 million, $2 million and $12 million for the United States, Canada, Trinidad and Other International, respectively.  Excludes other property, plant and equipment.
(4)Includes Asset Retirement Costs of $52 million, $70 million, $7 million and $4 million for the United States, Canada, Trinidad and Other International, respectively.  Excludes other property, plant and equipment.
Results of Operations for Oil and Gas Producing Activities
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Results of Operations for Oil and Gas Producing Activities (1). The following table sets forth results of operations for oil and gas producing activities for the years ended December 31, 2013, 2012 and 2011:

          
 
 
United
States
  
Canada
  
Trinidad
  
Other
International (2)
  
Total
 
 
 
  
  
  
  
 
2013
 
  
  
  
  
 
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues
 
$
9,897,701
  
$
319,880
  
$
517,482
  
$
20,583
  
$
10,755,646
 
Other
  
51,713
   
4,770
   
24
   
-
   
56,507
 
Total
  
9,949,414
   
324,650
   
517,506
   
20,583
   
10,812,153
 
Exploration Costs
  
141,286
   
11,203
   
2,345
   
6,512
   
161,346
 
Dry Hole Costs
  
14,276
   
9,579
   
4,478
   
46,322
   
74,655
 
Transportation Costs
  
841,567
   
9,694
   
659
   
1,124
   
853,044
 
Production Costs
  
1,494,791
   
154,947
   
43,279
   
13,205
   
1,706,222
 
Impairments
  
178,718
   
84,934
   
14,274
   
9,015
   
286,941
 
Depreciation, Depletion and Amortization
  
3,122,858
   
179,520
   
181,637
   
13,995
   
3,498,010
 
Income (Loss) Before Income Taxes
  
4,155,918
   
(125,227
)
  
270,834
   
(69,590
)
  
4,231,935
 
Income Tax Provision (Benefit)
  
1,486,445
   
(32,295
)
  
103,313
   
(66,931
)
  
1,490,532
 
Results of Operations
 
$
2,669,473
  
$
(92,932
)
 
$
167,521
  
$
(2,659
)
 
$
2,741,403
 
 
                    
2012
                    
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues
 
$
7,048,572
  
$
321,597
  
$
565,030
  
$
23,177
  
$
7,958,376
 
Other
  
40,780
   
367
   
15
   
-
   
41,162
 
Total
  
7,089,352
   
321,964
   
565,045
   
23,177
   
7,999,538
 
Exploration Costs
  
162,152
   
13,350
   
2,262
   
7,805
   
185,569
 
Dry Hole Costs
  
1,772
   
1,570
   
-
   
11,628
   
14,970
 
Transportation Costs
  
591,547
   
7,511
   
1,104
   
1,269
   
601,431
 
Production Costs
  
1,264,633
   
154,509
   
37,792
   
11,694
   
1,468,628
 
Impairments
  
294,172
   
976,563
   
-
   
-
   
1,270,735
 
Depreciation, Depletion and Amortization
  
2,637,500
   
222,366
   
146,690
   
17,958
   
3,024,514
 
Income (Loss) Before Income Taxes
  
2,137,576
   
(1,053,905
)
  
377,197
   
(27,177
)
  
1,433,691
 
Income Tax Provision (Benefit)
  
761,459
   
(136,105
)
  
119,442
   
(21,890
)
  
722,906
 
Results of Operations
 
$
1,376,117
  
$
(917,800
)
 
$
257,755
  
$
(5,287
)
 
$
710,785
 
 
                    
2011
                    
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues
 
$
5,814,942
  
$
459,853
  
$
555,143
  
$
28,250
  
$
6,858,188
 
Other
  
32,329
   
258
   
586
   
-
   
33,173
 
Total
  
5,847,271
   
460,111
   
555,729
   
28,250
   
6,891,361
 
Exploration Costs
  
148,199
   
10,479
   
2,520
   
10,460
   
171,658
 
Dry Hole Costs
  
30,521
   
432
   
-
   
22,277
   
53,230
 
Transportation Costs
  
421,060
   
5,969
   
1,620
   
1,673
   
430,322
 
Production Costs
  
1,096,955
   
174,973
   
49,318
   
10,964
   
1,332,210
 
Impairments
  
575,976
   
452,103
   
-
   
2,958
   
1,031,037
 
Depreciation, Depletion and Amortization
  
2,011,080
   
258,772
   
106,802
   
17,160
   
2,393,814
 
Income (Loss) Before Income Taxes
  
1,563,480
   
(442,617
)
  
395,469
   
(37,242
)
  
1,479,090
 
Income Tax Provision (Benefit)
  
569,153
   
(121,044
)
  
202,815
   
(13,056
)
  
637,868
 
Results of Operations
 
$
994,327
  
$
(321,573
)
 
$
192,654
  
$
(24,186
)
 
$
841,222
 

(1)Excludes gains or losses on the mark-to-market of financial commodity derivative contracts, gains or losses on sales of reserves and related assets, interest charges and general corporate expenses for each of the three years in the period ended December 31, 2013.
(2)Other International primarily consists of EOG's United Kingdom, China and Argentina operations.
Production Costs Per Barrel of Oil Equivalent
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following table sets forth production costs per barrel of oil equivalent, excluding severance/production and ad valorem taxes, for the years ended December 31, 2013, 2012 and 2011:

 
 
United
States
  
Canada
  
Trinidad
  
Other
International (1)
  
Composite
 
 
 
  
  
  
  
 
Year Ended December 31, 2013
 
$
5.78
  
$
19.98
  
$
1.36
  
$
26.77
  
$
5.88
 
 
                    
Year Ended December 31, 2012
 
$
5.96
  
$
16.42
  
$
0.98
  
$
18.97
  
$
5.85
 
 
                    
Year Ended December 31, 2011
 
$
6.19
  
$
14.26
  
$
0.78
  
$
13.82
  
$
6.03
 

(1)    Other International primarily consists of EOG's United Kingdom, China and Argentina operations.
Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves Table
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

The following table sets forth the standardized measure of discounted future net cash flows from projected production of EOG's oil and gas reserves for the years ended December 31, 2013, 2012 and 2011:

 
 
United
States
  
Canada
  
Trinidad
  
Other
International (1)
  
Total
 
 
 
  
  
  
  
 
2013
 
  
  
  
  
 
Future cash inflows (2)
 
$
119,644,713
  
$
1,199,251
  
$
2,082,195
  
$
1,073,340
  
$
123,999,499
 
Future production costs
  
(49,099,393
)
  
(540,188
)
  
(315,483
)
  
(211,424
)
  
(50,166,488
)
Future development costs
  
(17,753,860
)
  
(529,788
)
  
(112,050
)
  
(153,653
)
  
(18,549,351
)
Future income taxes
  
(15,763,089
)
  
-
   
(603,786
)
  
(49,512
)
  
(16,416,387
)
Future net cash flows
  
37,028,371
   
129,275
   
1,050,876
   
658,751
   
38,867,273
 
Discount to present value at 10% annual rate
  
(17,451,470
)
  
202,379
   
(174,236
)
  
(110,514
)
  
(17,533,841
)
Standardized measure of discounted future net cash flows relating to proved oil and gas reserves
 
$
19,576,901
  
$
331,654
  
$
876,640
  
$
548,237
  
$
21,333,432
 
2012
                    
Future cash inflows (3)
 
$
89,324,274
  
$
1,816,369
  
$
2,408,116
  
$
1,063,854
  
$
94,612,613
 
Future production costs
  
(35,892,997
)
  
(751,113
)
  
(342,113
)
  
(198,609
)
  
(37,184,832
)
Future development costs
  
(15,825,040
)
  
(813,061
)
  
(171,737
)
  
(221,893
)
  
(17,031,731
)
Future income taxes
  
(10,247,007
)
  
-
   
(691,109
)
  
(212,626
)
  
(11,150,742
)
Future net cash flows
  
27,359,230
   
252,195
   
1,203,157
   
430,726
   
29,245,308
 
Discount to present value at 10% annual rate
  
(12,177,896
)
  
146,954
   
(242,087
)
  
(56,807
)
  
(12,329,836
)
Standardized measure of discounted future net cash flows relating to proved oil and gas reserves
 
$
15,181,334
  
$
399,149
  
$
961,070
  
$
373,919
  
$
16,915,472
 
2011
                    
Future cash inflows (4)
 
$
84,518,638
  
$
5,056,501
  
$
2,851,545
  
$
103,853
  
$
92,530,537
 
Future production costs
  
(33,294,343
)
  
(2,315,110
)
  
(388,199
)
  
(62,938
)
  
(36,060,590
)
Future development costs
  
(13,811,449
)
  
(1,566,917
)
  
(149,884
)
  
(331
)
  
(15,528,581
)
Future income taxes
  
(10,539,182
)
  
(81,590
)
  
(794,856
)
  
(2,457
)
  
(11,418,085
)
Future net cash flows
  
26,873,664
   
1,092,884
   
1,518,606
   
38,127
   
29,523,281
 
Discount to present value at 10% annual rate
  
(12,498,010
)
  
(456,537
)
  
(334,399
)
  
(9,054
)
  
(13,298,000
)
Standardized measure of discounted future net cash flows relating to proved oil and gas reserves
 
$
14,375,654
  
$
636,347
  
$
1,184,207
  
$
29,073
  
$
16,225,281
 

(1)Other International includes EOG's United Kingdom, China and Argentina operations.
(2)Estimated crude oil prices used to calculate 2013 future cash inflows for the United States, Canada, Trinidad and Other International were $105.91, $91.47, $94.30 and $107.36, respectively. Estimated NGLs prices used to calculate 2013 future cash inflows for the United States and Canada were $29.42 and $40.88, respectively.  Estimated natural gas prices used to calculate 2013 future cash inflows for the United States, Canada, Trinidad and Other International were $3.50, $2.95, $3.71 and $5.67, respectively.
(3)Estimated crude oil prices used to calculate 2012 future cash inflows for the United States, Canada, Trinidad and Other International were $99.78, $84.77, $94.46 and $109.94, respectively.  Estimated NGLs prices used to calculate 2012 future cash inflows for the United States and Canada were $36.95 and $47.80, respectively. Estimated natural gas prices used to calculate 2012 future cash inflows for the United States, Canada, Trinidad and Other International were $2.63, $2.22, $3.61, and $5.04, respectively.
(4)Estimated crude oil prices used to calculate 2011 future cash inflows for the United States, Canada, Trinidad and Other International were $97.75, $90.70, $92.50 and $102.86, respectively. Estimated NGLs prices used to calculate 2011 future cash inflows for the United States and Canada were $51.77 and $46.97, respectively. Estimated natural gas prices used to calculate 2011 future cash inflows for the United States, Canada, Trinidad and Other International were $4.03, $3.28, $3.37 and $5.07, respectively.
Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves
EOG RESOURCES, INC.

SUPPLEMENTAL INFORMATION TO CONSOLIDATED FINANCIAL STATEMENTS (Continued)

Changes in Standardized Measure of Discounted Future Net Cash Flows.  The following table sets forth the changes in the standardized measure of discounted future net cash flows at December 31, for each of the three years in the period ended December 31, 2013:

 
 
United
States
  
Canada
  
Trinidad
  
Other
International
  
Total
 
December 31, 2010
  
10,628,924
   
746,235
   
988,866
   
27,799
   
12,391,824
 
Sales and transfers of oil and gas produced, net of production costs
  
(4,296,926
)
  
(278,910
)
  
(504,205
)
  
(15,614
)
  
(5,095,655
)
Net changes in prices and production costs
  
716,682
   
(57,545
)
  
331,196
   
3,328
   
993,661
 
Extensions, discoveries, additions and improved recovery, net of related costs
  
6,223,552
   
22,591
   
102,548
   
-
   
6,348,691
 
Development costs incurred
  
1,422,500
   
48,200
   
74,800
   
-
   
1,545,500
 
Revisions of estimated development cost
  
(210,919
)
  
64,001
   
(14,074
)
  
2
   
(160,990
)
Revisions of previous quantity estimates
  
(482,496
)
  
(70,718
)
  
(56,884
)
  
801
   
(609,297
)
Accretion of discount
  
1,352,740
   
62,725
   
159,715
   
2,782
   
1,577,962
 
Net change in income taxes
  
(1,049,641
)
  
(118,988
)
  
9,511
   
13
   
(1,159,105
)
Purchases of reserves in place
  
5,241
   
-
   
-
   
-
   
5,241
 
Sales of reserves in place
  
(658,468
)
  
-
   
-
   
-
   
(658,468
)
Changes in timing and other
  
724,465
   
218,756
   
92,734
   
9,962
   
1,045,917
 
December 31, 2011
  
14,375,654
   
636,347
   
1,184,207
   
29,073
   
16,225,281
 
Sales and transfers of oil and gas produced, net of production costs
  
(5,192,392
)
  
(159,577
)
  
(526,134
)
  
(10,214
)
  
(5,888,317
)
Net changes in prices and production costs
  
(393,585
)
  
(67,964
)
  
162,600
   
(2,283
)
  
(301,232
)
Extensions, discoveries, additions and improved recovery, net of related costs
  
5,517,945
   
79,529
   
-
   
484,648
   
6,082,122
 
Development costs incurred
  
2,042,300
   
23,600
   
23,500
   
5,200
   
2,094,600
 
Revisions of estimated development cost
  
1,987,330
   
383,215
   
(28,835
)
  
(234
)
  
2,341,476
 
Revisions of previous quantity estimates
  
(3,286,943
)
  
(396,408
)
  
(62,285
)
  
2,809
   
(3,742,827
)
Accretion of discount
  
1,832,377
   
63,635
   
178,298
   
2,907
   
2,077,217
 
Net change in income taxes
  
174,418
   
-
   
88,853
   
(138,206
)
  
125,065
 
Purchases of reserves in place
  
64,317
   
-
   
-
   
5,623
   
69,940
 
Sales of reserves in place
  
(869,534
)
  
(44,227
)
  
-
   
-
   
(913,761
)
Changes in timing and other
  
(1,070,553
)
  
(119,001
)
  
(59,134
)
  
(5,404
)
  
(1,254,092
)
December 31, 2012
  
15,181,334
   
399,149
   
961,070
   
373,919
   
16,915,472
 
Sales and transfers of oil and gas produced, net of production costs
  
(7,561,343
)
  
(155,239
)
  
(473,544
)
  
(6,254
)
  
(8,196,380
)
Net changes in prices and production costs
  
1,734,058
   
(438,982
)
  
(12,050
)
  
(25,173
)
  
1,257,853
 
Extensions, discoveries, additions and improved recovery, net of related costs
  
5,449,531
   
33,901
   
-
   
-
   
5,483,432
 
Development costs incurred
  
2,792,400
   
95,400
   
67,100
   
1,000
   
2,955,900
 
Revisions of estimated development cost
  
892,803
   
48,906
   
(3,539
)
  
52,226
   
990,396
 
Revisions of previous quantity estimates
  
1,887,062
   
(23,915
)
  
(60,419
)
  
(8,530
)
  
1,794,198
 
Accretion of discount
  
1,895,503
   
39,915
   
147,099
   
51,212
   
2,133,729
 
Net change in income taxes
  
(2,772,267
)
  
-
   
56,373
   
137,644
   
(2,578,250
)
Purchases of reserves in place
  
66,359
   
-
   
-
   
-
   
66,359
 
Sales of reserves in place
  
(140,652
)
  
-
   
-
   
-
   
(140,652
)
Changes in timing and other
  
152,113
   
332,519
   
194,550
   
(27,807
)
  
651,375
 
December 31, 2013
 
$
19,576,901
  
$
331,654
  
$
876,640
  
$
548,237
  
$
21,333,432