| Producción por operador | ||||||||
| Operador | Petroleo | Gas natural | ||||||
| 12/2004 | 1/2005 | 12/2004 | 1/2005 | |||||
| m3/día | % | m3/día | % | Mm3/día | % | Mm3/día | % | |
| YPF S.A. | 45,784 | 41.99 | 44,689 | 41.47 | 43,899 | 32.12 | 43,211 | 31.07 |
| PAN AMERICAN | 16,390 | 15.03 | 16,383 | 15.20 | 16,860 | 12.34 | 16,976 | 12.21 |
| CHEVRON SAN JORGE S.A. | 9,805 | 8.99 | 9,731 | 9.03 | 2,933 | 2.15 | 2,899 | 2.08 |
| PESA (PETROBRAS E.S.A.) | 0 | 0.00 | 10,855 | 10.07 | 0 | 0.00 | 13,548 | 9.74 |
| TECPETROL S.A. | 5,347 | 4.90 | 5,286 | 4.90 | 7,045 | 5.15 | 6,936 | 4.99 |
| PETROBRAS ENERGIA S.A. | 10,569 | 9.69 | 0 | 0.00 | 9,536 | 6.98 | 0 | 0.00 |
| VINTAGE OIL | 5,003 | 4.59 | 4,811 | 4.46 | 1,447 | 1.06 | 1,542 | 1.11 |
| TOTAL AUSTRAL S.A. | 3,977 | 3.65 | 4,183 | 3.88 | 29,850 | 21.84 | 31,632 | 22.74 |
| SIPETROL S.A. | 2,492 | 2.29 | 2,532 | 2.35 | 2,751 | 2.01 | 3,045 | 2.19 |
| PLUSPETROL S.A. | 2,323 | 2.13 | 2,289 | 2.12 | 11,252 | 8.23 | 11,973 | 8.61 |
| CAPSA CAPEX | 1,917 | 1.76 | 1,937 | 1.80 | 2,776 | 2.03 | 2,644 | 1.90 |
| PETROLERA ENTRE LOMAS S.A. | 1,634 | 1.50 | 1,630 | 1.51 | 1,023 | 0.75 | 1,074 | 0.77 |
| PIONEER NAT.RESOURCES ARG.S.A. | 1,214 | 1.11 | 1,217 | 1.13 | 2,687 | 1.97 | 2,632 | 1.89 |
| CHAÑARES HERRADOS S.A. | 320 | 0.29 | 370 | 0.34 | 12 | 0.01 | 14 | 0.01 |
| RIO ALTO | 296 | 0.27 | 299 | 0.28 | 0 | 0.00 | 0 | 0.00 |
| PET. SUDAMERICANOS NECON-UTE | 295 | 0.27 | 286 | 0.27 | 189 | 0.14 | 174 | 0.13 |
| CENTRAL RESOURCE INC | 257 | 0.24 | 253 | 0.23 | 19 | 0.01 | 20 | 0.01 |
| ROCH S.A. | 245 | 0.22 | 241 | 0.22 | 357 | 0.26 | 344 | 0.25 |
| PETROLERA SAN JOSE S.R.L. | 206 | 0.19 | 184 | 0.17 | 17 | 0.01 | 15 | 0.01 |
| PETR. SANTA FE S.R.L | 358 | 0.33 | 0 | 0.00 | 3,556 | 2.60 | 0 | 0.00 |
| PETROQUIMICA COM. RIVADAVIA S.A. | 140 | 0.13 | 160 | 0.15 | 249 | 0.18 | 248 | 0.18 |
| COLHUE HUAPI S.A. | 95 | 0.09 | 95 | 0.09 | 20 | 0.01 | 18 | 0.01 |
| CLEAR S.R.L. Y PETROMINERA CHUBUT | 52 | 0.05 | 66 | 0.06 | 8 | 0.01 | 9 | 0.01 |
| OILGENER ARGENTINA Ltd. | 57 | 0.05 | 47 | 0.04 | 5 | 0.00 | 5 | 0.00 |
| RME ARGENTINA S.A. | 47 | 0.04 | 51 | 0.05 | 5 | 0.00 | 6 | 0.00 |
| MISAHAR ARGENTINA | 44 | 0.04 | 44 | 0.04 | 2 | 0.00 | 2 | 0.00 |
| GAS MEDANITO S.A. | 46 | 0.04 | 39 | 0.04 | 61 | 0.04 | 62 | 0.04 |
| EPP PETROLEO S.A. | 31 | 0.03 | 30 | 0.03 | 4 | 0.00 | 4 | 0.00 |
| INGENIERIA ALPA S.A. | 44 | 0.04 | 0 | 0.00 | 43 | 0.03 | 0 | 0.00 |
| C.G.C. S.A. | 19 | 0.02 | 21 | 0.02 | 53 | 0.04 | 54 | 0.04 |
| DONG WON CORPORATION | 18 | 0.02 | 18 | 0.02 | 0 | 0.00 | 0 | 0.00 |
| TECNICAGUA S.A. | 12 | 0.01 | 11 | 0.01 | 6 | 0.00 | 7 | 0.01 |
| INGENIERIA SIMA S.A. | 6 | 0.01 | 6 | 0.01 | 0 | 0.00 | 0 | 0.00 |
| Totales | 109,046 | 100.00 | 107,764 | 100.00 | 136,666 | 100.00 | 139,091 | 100.00 |