XML 209 R175.htm IDEA: XBRL DOCUMENT v3.8.0.1
Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Summary of Changes in YPF's Net Proved Reserves (Detail)
 12 Months Ended
Dec. 31, 2017
MMBbls
MMBoe
Bcf
Dec. 31, 2016
MMBbls
MMBoe
Bcf
Dec. 31, 2015
MMBbls
MMBoe
Bcf
Disclosure of information about consolidated structured entities [Line Items]      
Improved recovery | MMBoe 32 35 23
Worldwide [Member] | Equity-accounted entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Sale of minerals in place 0 0 0
Improved recovery 0 0 0
Purchase of minerals in place 0 0 0
Worldwide [Member] | Consolidated entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 525 608 601
Revisions of previous estimates (71) (75) 31
Extensions and discoveries 19 45 44
Improved recovery 32 35 23
Purchase of minerals in place   2  
Sale of minerals in place 0 0 0
Production for the year (83) (90) (91)
Ending balance 422 525 608
Beginning balance 68 71 73
Revisions of previous estimates 4 5 9
Extensions and discoveries 5 11 10
Improved recovery 0 0 0
Purchase of minerals in place 0 0 0
Sale of minerals in place     (3)
Production for the year (19) (19) (18)
Ending balance 58 68 71
Beginning balance | Bcf 2,923 3,072 3,016
Revisions of previous estimates | Bcf (161) (110) 174
Extensions and discoveries | Bcf 313 371 520
Improved recovery | Bcf   1 1
Purchase of minerals in place | Bcf 12 165  
Sale of minerals in place | Bcf     (70)
Production for the year | Bcf (567) (576) (569)
Ending balance | Bcf 2,520 2,923 3,072
Beginning balance 1,113 1,226 1,212
Revisions of previous estimates (96) (89) 71
Extensions and discoveries 80 122 147
Improved recovery 32 35 23
Purchase of minerals in place 2 31  
Sale of minerals in place   (1) (16)
Production for the year (202) (211) (211)
Ending balance 929 1,113 1,226
Worldwide [Member] | Consolidated entities [Member] | Proved reserves, developed [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 380 440 447
Ending balance 286 380 440
Beginning balance 53 56 53
Ending balance 47 53 56
Beginning balance | Bcf 2,143 2,210 2,267
Ending balance | Bcf 1,850 2,143 2,210
Beginning balance 815 889 905
Ending balance 663 815 889
Worldwide [Member] | Consolidated entities [Member] | Proved reserves, undeveloped [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 145 168 154
Ending balance 136 145 168
Beginning balance 15 15 20
Ending balance 11 15 15
Beginning balance | Bcf 780 862 749
Ending balance | Bcf 670 780 862
Beginning balance 298 337 307
Ending balance 266 298 337
Worldwide [Member] | Consolidated and equity-accounted entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 525 608 601
Ending balance 422 525 608
Beginning balance 68 71 73
Ending balance 58 68 71
Beginning balance | Bcf 2,923 3,072 3,016
Ending balance | Bcf 2,520 2,923 3,072
Beginning balance 1,113 1,226 1,212
Ending balance 929 1,113 1,226
Worldwide [Member] | Consolidated and equity-accounted entities [Member] | Proved reserves, developed [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 380 440 447
Ending balance 286 380 440
Beginning balance 53 56 53
Ending balance 47 53 56
Beginning balance | Bcf 2,143 2,210 2,267
Ending balance | Bcf 1,850 2,143 2,210
Beginning balance 815 889 905
Ending balance 663 815 889
Worldwide [Member] | Consolidated and equity-accounted entities [Member] | Proved reserves, undeveloped [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 145 168 154
Ending balance 136 145 168
Beginning balance 15 15 20
Ending balance 11 15 15
Beginning balance | Bcf 780 862 749
Ending balance | Bcf 670 780 862
Beginning balance 298 337 307
Ending balance 266 298 337
Argentina [member] | Equity-accounted entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Sale of minerals in place 0 0 0
Improved recovery 0 0 0
Purchase of minerals in place 0 0 0
Argentina [member] | Consolidated entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 525 607 600
Revisions of previous estimates (72) (74) 31
Extensions and discoveries 19 45 44
Improved recovery 33 35 23
Purchase of minerals in place   2  
Sale of minerals in place 0 0 0
Production for the year (83) (90) (91)
Ending balance 422 525 607
Beginning balance 68 71 73
Revisions of previous estimates 4 5 9
Extensions and discoveries 5 11 10
Improved recovery 0 0 0
Purchase of minerals in place 0 0 0
Sale of minerals in place     (3)
Production for the year (19) (19) (18)
Ending balance 58 68 71
Beginning balance | Bcf 2,923 3,067 3,011
Revisions of previous estimates | Bcf (161) (105) 174
Extensions and discoveries | Bcf 313 371 520
Improved recovery | Bcf   1 1
Purchase of minerals in place | Bcf 12 165  
Sale of minerals in place | Bcf     (70)
Production for the year | Bcf (567) (576) (569)
Ending balance | Bcf 2,520 2,923 3,067
Beginning balance 1,113 1,224 1,210
Revisions of previous estimates (96) (87) 70
Extensions and discoveries 80 122 147
Improved recovery 32 35 23
Purchase of minerals in place 2 31  
Sale of minerals in place   (1) (16)
Production for the year (202) (211) (210)
Ending balance 929 1,113 1,224
Argentina [member] | Consolidated entities [Member] | Proved reserves, developed [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 380 439 446
Ending balance 286 380 439
Beginning balance 53 56 53
Ending balance 47 53 56
Beginning balance | Bcf 2,143 2,205 2,262
Ending balance | Bcf 1,850 2,143 2,205
Beginning balance 815 887 903
Ending balance 663 815 887
Argentina [member] | Consolidated entities [Member] | Proved reserves, undeveloped [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 145 168 154
Ending balance 136 145 168
Beginning balance 15 15 20
Ending balance 11 15 15
Beginning balance | Bcf 780 862 749
Ending balance | Bcf 670 780 862
Beginning balance 298 337 307
Ending balance 266 298 337
Argentina [member] | Consolidated and equity-accounted entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 525 607 600
Ending balance 422 525 607
Beginning balance 68 71 73
Ending balance 58 68 71
Beginning balance | Bcf 2,923 3,067 3,011
Ending balance | Bcf 2,520 2,923 3,067
Beginning balance 1,113 1,224 1,210
Ending balance 929 1,113 1,224
Argentina [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, developed [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 380 439 446
Ending balance 286 380 439
Beginning balance 53 56 53
Ending balance 47 53 56
Beginning balance | Bcf 2,143 2,205 2,262
Ending balance | Bcf 1,850 2,143 2,205
Beginning balance 815 887 903
Ending balance 663 815 887
Argentina [member] | Consolidated and equity-accounted entities [Member] | Proved reserves, undeveloped [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance 145 168 154
Ending balance 136 145 168
Beginning balance 15 15 20
Ending balance 11 15 15
Beginning balance | Bcf 780 862 749
Ending balance | Bcf 670 780 862
Beginning balance 298 337 307
Ending balance 266 298 337
Other foreign [Member] | Equity-accounted entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Sale of minerals in place 0 0 0
Improved recovery 0 0 0
Purchase of minerals in place 0 0 0
Other foreign [Member] | Consolidated entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance   1 1
Revisions of previous estimates   (1)  
Sale of minerals in place 0 0 0
Ending balance     1
Improved recovery 0 0 0
Purchase of minerals in place 0 0 0
Beginning balance | Bcf   5 5
Revisions of previous estimates | Bcf   (5)  
Ending balance | Bcf     5
Beginning balance   2 2
Revisions of previous estimates   (2) 1
Production for the year     (1)
Ending balance     2
Other foreign [Member] | Consolidated entities [Member] | Proved reserves, developed [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance   1 1
Ending balance     1
Beginning balance | Bcf   5 5
Ending balance | Bcf     5
Beginning balance   2 2
Ending balance     2
Other foreign [Member] | Consolidated and equity-accounted entities [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance   1 1
Ending balance     1
Beginning balance | Bcf   5 5
Ending balance | Bcf     5
Beginning balance   2 2
Ending balance     2
Other foreign [Member] | Consolidated and equity-accounted entities [Member] | Proved reserves, developed [Member]      
Disclosure of information about consolidated structured entities [Line Items]      
Beginning balance   1 1
Ending balance     1
Beginning balance | Bcf   5 5
Ending balance | Bcf     5
Beginning balance   2 2
Ending balance     2