| Onshore | Offshore | |||
| Liquids | Gas | Liquids | Gas | |
| Beginning-of-1994 Reserves | 7,734 | 9,900 | 444 | 880 |
| + Reserve Additions, 1994-1997 | 4,157 | 5,337 | 535 | 1,192 |
| + Net Purchases from Majors, 1994-1997 | 1,195 | 427 | 118 | -9 |
| - Production, 1994-1997 | 3,670 | 4,317 | 450 | 1,140 |
| = End-of-1997 Reserves | 9,416 | 11,347 | 647 | 924 |
| Note: Sum of components may not equal total due to independent rounding.
Sources: Majors: Financial Analysis Team, Office of Energy Markets and End Use, Energy Information Administration (Financial Reporting System). Total United States: Energy Information Administration, U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 1994, DOE/EIA-0216(94) (Washington, DC, November 1995); Energy Information Administration, U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 1995, DOE/EIA-0216(95) (Washington, DC, November 1996); Energy Information Administration, U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 1996, DOE/EIA-0216(96) (Washington, DC, November 1997); and U.S. Crude Oil, Natural Gas, and Natural Gas Liquids Reserves 1997, DOE/EIA-0216 (Washington, DC, December 1998) |
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