| Producción por operador | ||||||||
| Operador | Petroleo | Gas natural | ||||||
| 12/2003 | 1/2004 | 12/2003 | 1/2004 | |||||
| m3/día | % | m3/día | % | Mm3/día | % | Mm3/día | % | |
| YPF S.A. | 49,949 | 43.35 | 48,910 | 43.76 | 40,994 | 30.71 | 40,353 | 29.98 |
| PAN AMERICAN | 15,668 | 13.60 | 15,560 | 13.92 | 15,030 | 11.26 | 15,143 | 11.25 |
| PETROBRAS ENERGIA S.A. | 11,591 | 10.06 | 10,833 | 9.69 | 9,733 | 7.29 | 9,961 | 7.40 |
| CHEVRON SAN JORGE S.A. | 10,237 | 8.88 | 9,843 | 8.81 | 3,484 | 2.61 | 3,362 | 2.50 |
| TECPETROL S.A. | 5,200 | 4.51 | 5,140 | 4.60 | 8,250 | 6.18 | 8,154 | 6.06 |
| VINTAGE OIL | 4,710 | 4.09 | 4,748 | 4.25 | 1,437 | 1.08 | 1,376 | 1.02 |
| TOTAL AUSTRAL S.A. | 4,450 | 3.86 | 4,540 | 4.06 | 29,209 | 21.88 | 31,249 | 23.21 |
| SIPETROL S.A. | 3,819 | 3.31 | 2,752 | 2.46 | 2,398 | 1.80 | 2,269 | 1.69 |
| PLUSPETROL S.A. | 2,300 | 2.00 | 2,275 | 2.03 | 13,048 | 9.78 | 13,054 | 9.70 |
| CAPSA CAPEX | 1,953 | 1.70 | 1,929 | 1.73 | 2,837 | 2.13 | 2,754 | 2.05 |
| PETROLERA PEREZ COMPANC S.A. | 1,460 | 1.27 | 1,513 | 1.35 | 946 | 0.71 | 942 | 0.70 |
| PIONEER NAT.RESOURCES ARG.S.A. | 1,447 | 1.26 | 1,334 | 1.19 | 2,023 | 1.52 | 1,886 | 1.40 |
| CHAÑARES HERRADOS S.A. | 312 | 0.27 | 410 | 0.37 | 9 | 0.01 | 12 | 0.01 |
| RIO ALTO | 370 | 0.32 | 351 | 0.31 | 0 | 0.00 | 0 | 0.00 |
| PETR. SANTA FE S.A. | 348 | 0.30 | 348 | 0.31 | 2,991 | 2.24 | 3,023 | 2.25 |
| PET. SUDAMERICANOS NECON-UTE | 314 | 0.27 | 287 | 0.26 | 215 | 0.16 | 221 | 0.16 |
| ROCH S.A. | 249 | 0.22 | 249 | 0.22 | 363 | 0.27 | 349 | 0.26 |
| PETROQUIMICA COM. RIVADAVIA S.A. | 159 | 0.14 | 150 | 0.13 | 270 | 0.20 | 269 | 0.20 |
| COLHUE HUAPI S.A. | 108 | 0.09 | 107 | 0.10 | 18 | 0.01 | 18 | 0.01 |
| NETHERFIELD | 185 | 0.16 | 0 | 0.00 | 18 | 0.01 | 0 | 0.00 |
| PETROLERA SAN JOSE S.R.L. | 0 | 0.00 | 176 | 0.16 | 0 | 0.00 | 17 | 0.01 |
| RME ARGENTINA S.A. | 60 | 0.05 | 55 | 0.05 | 5 | 0.00 | 5 | 0.00 |
| CLEAR S.R.L. Y PETROMINERA CHUBUT | 57 | 0.05 | 50 | 0.05 | 27 | 0.02 | 30 | 0.02 |
| MISAHAR ARGENTINA | 50 | 0.04 | 53 | 0.05 | 2 | 0.00 | 3 | 0.00 |
| INGENIERIA ALPA S.A. | 39 | 0.03 | 44 | 0.04 | 34 | 0.03 | 31 | 0.02 |
| GAS MEDANITO S.A. | 34 | 0.03 | 32 | 0.03 | 15 | 0.01 | 74 | 0.05 |
| INGENIERIA SIMA S.A. | 46 | 0.04 | 7 | 0.01 | 0 | 0.00 | 0 | 0.00 |
| DONG WON CORPORATION | 23 | 0.02 | 24 | 0.02 | 0 | 0.00 | 0 | 0.00 |
| C.G.C. S.A. | 20 | 0.02 | 20 | 0.02 | 49 | 0.04 | 47 | 0.03 |
| OILGENER ARGENTINA Ltd. | 19 | 0.02 | 19 | 0.02 | 6 | 0.00 | 5 | 0.00 |
| TECNICAGUA S.A. | 14 | 0.01 | 14 | 0.01 | 7 | 0.01 | 8 | 0.01 |
| EPP PETROLEO S.A. | 27 | 0.02 | 0 | 0.00 | 0 | 0.00 | 0 | 0.00 |
| PETR. CUTRAL CO S.A. | 7 | 0.01 | 0 | 0.00 | 64 | 0.05 | 0 | 0.00 |
| Totales | 115,227 | 100.00 | 111,774 | 100.00 | 133,484 | 100.00 | 134,616 | 100.00 |