| This information was supplied by James MacKenzie |
| AUTHOR | EUR Tb | YEAR | |
| Petroconsultants, 1995 | 1.80 | 1995 |  |
| Laherrere, 1995 | 1.70 | 1995 |
| Masters, (USGS) 1994 | 2.27 | 1994 |
| OPEC, 1993 | 2.14 | 1993 |
| Masters, 1991 | 2.15 | 1991 |
| USGS, 1987 | 1.74 | 1987 |
| Ivanhoe, 1984 | 1.70 | 1984 |
| BP, 1984 | 1.69 | 1984 |
| Masters (USGS), 1983 | 1.72 | 1983 |
| Nehring, 1982 | 2.00 | 1982 |
| Colitti (Agip), 1981 | 2.08 | 1981 |
| Conoco, 1981 | 2.07 | 1981 |
| Halbouty, 1981 | 2.28 | 1981 |
| WEC, 1980 | 2.60 | 1980 |
| Roorda (Shell), 1979 | 2.40 | 1979 |
| Meyerhoff, 1979 | 2.19 | 1979 |
| Halbouty, Moody 1979 | 2.13 | 1979 |
| Nehring, 1979 | 1.80 | 1979 |
| Nehring (Rand), 1978 | 2.00 | 1978 |
| Klemme, 1978 | 1.75 | 1978 |
| DeBruyne (Shell), 1978 | 1.60 | 1978 |
| SOCAL, 1977 | 2.00 | 1977 |
| W.E. Conf., 1977 | 2.27 | 1977 |
| Mobil, 1975 | 2.00 | 1975 |
| Howitt (BP), 1974 | 1.80 | 1974 |
| SOCAL, 1974 | 2.00 | 1974 |
| Linden, 1973 | 2.95 | 1973 |
| USGS, 1973 | 2.96 | 1973 |
| Bauquis, 1972 | 1.95 | 1972 |
| Mobil, 1972 | 1.85 | 1972 |
| Warman (BP), 1972 | 1.90 | 1972 |
| Moody, 1970 | 1.80 | 1970 |
| Hubbert, 1969 | 1.73 | 1969 |
| Weeks, 1978 | 3.55 | 1978 |
| Shell, 1968 | 1.80 | 1968 |
| ESSO, 1967 | 2.09 | 1967 |
| Hendricks, 1965 | 2.48 | 1965 |
| Weeks, 1959 | 2.00 | 1959 |
| Weeks, 1958 | 1.50 | 1958 |
| Hubbert, 1956 | 1.25 | 1956 |
| MacNaughton, 1953 | 1.00 | 1953 | |
| |
| This information was supplied by Jean Laherrere to support Will the world’s 939 billions barrels of undiscovered oil+NGL: Is USGS 2000 assessment reliable? |
| AUTHOR | EUR Tb | YEAR | |
| Pratt, Weeks & Stebinger,1942 | 0.60 | 1942 | |
| Duce, 1946 | 0.40 | 1946 |
| Pogue, 1946 | 0.55 | 1946 |
| Weeks, 1948 | 0.61 | 1948 |
| Weeks, 1949 | 1.01 | 1949 |
| Leversen, 1949 | 1.50 | 1949 |
| Mac Naughton, 1953 | 1.00 | 1953 |
| Hubbert, 1956 | 1.25 | 1956 |
| Weeks, 1958 | 1.50 | 1958 |
| Weeks, 1959 | 2.00 | 1959 |
| Hendricks USGS, 1965 | 2.48 | 1965 |
| Ryman Exxon, 1967 | 2.09 | 1967 |
| Shell, 1968 | 1.80 | 1968 |
| Weeks, 1968 | 2.80 | 1968 |
| Hubbert, 1969 | 1.25 | 1969 |
| Hubbert, 1969 | 2.10 | 1969 |
| Moody, 1970 | 1.80 | 1970 |
| Warman, 1971 | 1.20 | 1971 |
| Warman, 1971 | 2.00 | 1971 |
| Hubbert, 1971 | 2.00 | 1971 |
| Weeks, 1971 | 2.29 | 1971 |
| Moody, 1972 | 1.80 | 1972 |
| Warman, 1972 | 1.90 | 1972 |
| Bauquis, Brasseur & Masseron, IFP, 1972 | 1.95 | 1972 |
| Linden, 1973 | 2.95 | 1973 |
| Schweinfurth, 1973 | 2.96 | 1973 |
| Kirby & Adams, 1974 | 1.60 | 1974 |
| Howitt, 1974 | 1.80 | 1974 |
| Bonillas, 1974 | 2.00 | 1974 |
| Odell & Rosing, 1974 | 3.50 | 1974 |
| Moody & Esser WPC, 1975 | 2.00 | 1975 |
| US Nat. Academy of sciences, 1975 | 2.13 | 1975 |
| BGR, 1975 | 2.45 | 1975 |
| Folinsbee, 1976 | 1.80 | 1976 |
| Klemme, 1976 | 1.89 | 1976 |
| Unitar, 1977 | 2.00 | 1977 |
| Nelson, 1977 | 2.00 | 1977 |
| WEC, 1977 | 2.06 | 1977 |
| De Bruyne, 1978 | 1.60 | 1978 |
| Nehring, 1978 | 1.70 | 1978 |
| Klemme, 1978 | 1.75 | 1978 |
| WEC, 1978 | 2.02 | 1978 |
| Nehring, 1978 | 2.30 | 1978 |
| Nehring, 1979 | 1.60 | 1979 |
| Nehring, 1979 | 2.00 | 1979 |
| Halbouty, 1979 | 2.13 | 1979 |
| Meyerhoff, 1979 | 2.19 | 1979 |
| Roorda, 1979 | 2.40 | 1979 |
| WEC, 1980 | 2.60 | 1980 |
| Strickland, 1981 | 2.07 | 1981 |
| Colitti, 1981 | 2.08 | 1981 |
| Halbouty, 1981 | 2.28 | 1981 |
| Nehring, 1982 | 2.40 | 1982 |
| Masters, 1983 | 1.72 | 1983 |
| Kalinin, 1983 | 1.84 | 1983 |
| Martin, 1984 | 1.69 | 1984 |
| Ivanhoe, 1984 | 1.70 | 1984 |
| Masters, 1985 | 2.25 | 1985 |
| Keller, 1987 | 1.72 | 1987 |
| Deut, 1988 | 2.92 | 1988 |
| Bookout, 1989 | 2.00 | 1989 |
| Campbell, 1991 | 1.65 | 1991 |
| Masters, 1991 | 2.17 | 1991 |
| Laherrere, 1993 | 1.80 | 1993 |
| Masters, 1994 | 2.30 | 1994 |
| Campbell, 1995 | 1.80 | 1995 |
| Perrodon, Laherrere, Campbell +NGL, 1998 | 2.00 | 1998 |
| USGS, 2000 | 3.30 | 200 |
