| CH4, tonnes |
Refining | Oil terminal | Onshore Loading | Offshore loading | Extraction of oil and gas | Natural gas | Flaring | Total |
| 1990 | 37 | 783 | 34 | 0 | 708 | 424 | 86 | 2072 |
| 1991 | 40 | 924 | 46 | 0 | 864 | 587 | 110 | 2571 |
| 1992 | 42 | 1021 | 47 | 0 | 868 | 371 | 111 | 2462 |
| 1993 | 43 | 1086 | 56 | 0 | 930 | 465 | 105 | 2684 |
| 1994 | 57 | 1198 | 62 | 0 | 989 | 431 | 176 | 2913 |
| 1995 | 62 | 1209 | 62 | 0 | 990 | 834 | 169 | 3327 |
| 1996 | 62 | 1332 | 68 | 0 | 1060 | 507 | 226 | 3256 |
| 1997 | 45 | 1477 | 83 | 0 | 1199 | 460 | 202 | 3465 |
| 1998 | 45 | 1522 | 86 | 0 | 1235 | 384 | 140 | 3413 |
| 1999 | 45 | 1700 | 94 | 101 | 1331 | 434 | 151 | 3855 |
| 2000 | 50 | 1700 | 109 | 201 | 1365 | 401 | 144 | 3970 |
| 2001 | 44 | 1900 | 106 | 163 | 1393 | 403 | 145 | 4154 |
| 2002 | 43 | 2000 | 118 | 163 | 1421 | 305 | 134 | 4185 |
| 2003 | 37 | 2000 | 115 | 166 | 1536 | 299 | 132 | 4286 |
| 2004 | 613 | 2100 | 120 | 205 | 1542 | 379 | 154 | 5114 |
| 2005 | 612 | 2100 | 125 | 167 | 1608 | 380 | 114 | 5105 |
| 2006 | 2101 | 1900 | 113 | 127 | 1632 | 412 | 124 | 6409 |
| 2007 | 2008 | 1780 | 103 | 93 | 1685 | 276 | 137 | 6083 |
| 2008 | 2184 | 1648 | 96 | 93 | 1684 | 172 | 175 | 6052 |
| 2009 | 2137 | 1300 | 86 | 73 | 1703 | 144 | 112 | 5554 |