Kansas
Morton County leases
2,581 oil and gas leases on record in Morton County, Kansas · page 6 of 13
Leases in the county
2,581
On this page
200
Leases
| Lease | Operator | Product | Years | Cumulative | Wells |
|---|---|---|---|---|---|
| HAYWARD D-2HP | Merit Energy Company, LLC | Gas | 2008–2026 | 379,792 MCF | 1 |
| HAYWARD D-3 | OXY USA Inc. | Gas | 1997–2007 | 64,120 MCF | 1 |
| HAYWARD FM B 3H | BP America Production Company | — | — | — | — |
| HAYWARD G L 'B' | unknown | Oil | 1976–1991 | 4,083 bbl | — |
| HAYWARD Gas Unit 'B' 1 | Scout Energy Management LLC | Gas | 1957–2026 | 1,973,700 MCF | 1 |
| HAYWARD Gas Unit 'B' 2 | Scout Energy Management LLC | Gas | 1977–2020 | 1,385,364 MCF | 1 |
| HAYWARD Gas Unit 'B' 3HI | Scout Energy Management LLC | Gas | 1992–2026 | 392,625 MCF | 1 |
| HAYWARD L1H | Merit Energy Company, LLC | Gas | 1988–2026 | 1,056,141 MCF | 1 |
| HEINTZ 'A' 1 | Merit Energy Company, LLC | Gas | 1957–2026 | 4,324,823 MCF | 1 |
| HEINTZ 'A' 2 | Merit Energy Company, LLC | Oil | 1990–2003 | 2,550.65 bbl | 1 |
| HEINTZ 'A' 2 | Anadarko Petroleum Corporation | Gas | 1990–2004 | 241,957 MCF | — |
| HEINTZ 'A' 2 | Merit Energy Company, LLC | Gas | 1990–2026 | — | 1 |
| HEINTZ 'B' | OXY USA Inc. | Gas | 1968–1980 | 727,729 MCF | 1 |
| HEINTZ 'B' 1 | OXY USA Inc. | Oil | 1963–1981 | 290,372 bbl | 1 |
| HEINTZ 1 | Coastal Oil & Gas Corporation | Gas | 1968–1998 | 740,877 MCF | 1 |
| HEINTZ 1 | Chautauqua Oil and Gas LLC | Gas | 1968–2021 | 1,783,986 MCF | 1 |
| HEINTZ 1-31 | OXY USA Inc. | Gas | 1993–1996 | 4,247 MCF | — |
| HEINTZ 1-34 | Merit Energy Company, LLC | Gas | 1957–2026 | 4,934,818 MCF | 1 |
| HEINZ 'A' 3 | Merit Energy Company, LLC | Gas | 1996–2026 | — | 1 |
| HEMLINE | unknown | Oil | 1960–1962 | 1,226 bbl | — |
| HEMPHILL 1 | Merit Energy Company, LLC | Gas | 1968–2023 | 2,485,368 MCF | 1 |
| HENLINE | MESA PETROLEUM C | Oil | 1968–1971 | 1,876 bbl | — |
| HENLINE | MESA PETROLEUM C | Gas | 1968–1972 | 2,092,929 MCF | — |
| HENLINE | MESA PETROLEUM C | Gas | 1968–1976 | 913,573 MCF | 1 |
| HENSHAW 'A' 1 | OXY USA Inc. | Gas | 2002–2011 | 1,647,369 MCF | 1 |
| HENSHAW 'A' 1 | OXY USA Inc. | Oil | 2002–2004 | 3,232.75 bbl | 1 |
| HENTSCHEL 'A' 1 | Merit Energy Company, LLC | Gas | 1968–2026 | 7,670,809 MCF | 2 |
| HENTSCHEL 'B' 1 | OXY USA Inc. | Gas | 2003–2012 | 279,124 MCF | 1 |
| HERRON | SUPERIOR OIL COM | Gas | 1968–1986 | 8,079,750 MCF | 1 |
| HERRON UNIT | SUPERIOR OIL COM | Oil | 1968–1991 | 10,313 bbl | — |
| HERSHEY 'A' 1 H | Merit Energy Company, LLC | Gas | 1991–2026 | 1,119,120 MCF | 1 |
| HERSHEY 'C' 1 H | Anadarko Petroleum Corporation | Gas | 1988–1998 | 385,445 MCF | 1 |
| HERSHEY 'D' 3 H | Merit Energy Company, LLC | Gas | 1997–2026 | 914,241 MCF | 1 |
| HERSHEY 1-10 | Merit Energy Company, LLC | Gas | 1957–2026 | 8,065,645 MCF | 1 |
| HERSHEY 1-3 | Merit Energy Company, LLC | Gas | 1957–2026 | 7,001,945 MCF | 1 |
| HEYEN | PINON PETROLEUM | Oil | 1974–1975 | 9,012 bbl | — |
| HEYEN 1 | Merit Energy Company, LLC | Gas | 1968–2026 | 7,094,986 MCF | 1 |
| HEYEN 1 | Nadel and Gussman LLC | Gas | 1968–2008 | 2,502,322 MCF | 1 |
| HICKS 1-4 | Merit Energy Company, LLC | Gas | 1968–2026 | 10,960,909 MCF | 2 |
| HILL 'B' 1 | Anadarko Petroleum Corporation | Gas | 1990–2010 | 674,470 MCF | 1 |
| HILL 'B' 2 | HG Oil Holdings, LLC | Gas | 1997–2026 | — | 1 |
| HILL 'B' 2 | HG Oil Holdings, LLC | Oil | 2001–2012 | 362.68 bbl | 1 |
| HILL 1-16 | PANHANDLE EASTERN PIPE LI | Gas | 1958–1963 | 206,001 MCF | 1 |
| HILL 1-2 | Merit Energy Company, LLC | Gas | 1968–2026 | 5,587,610 MCF | 3 |
| HINSHAW 'A' 1H | Merit Energy Company, LLC | Gas | 1989–2026 | 1,234,509 MCF | 1 |
| HINSHAW 2 | Texaco Expl. and Prod. Inc. | Gas | 2007–2016 | 89,607 MCF | — |
| HOBBLE 'A' 1 | OXY USA Inc. | Oil | 1991–2005 | 85,227.32 bbl | 1 |
| HOBBLE 'A' 1 | OXY USA Inc. | Gas | 1991–2018 | 751,927 MCF | 1 |
| HOEME 'A' NO.2-4 | Merit Energy Company, LLC | Gas | 1982–2026 | 845,434 MCF | 2 |
| HOEME 1-4 | Merit Energy Company, LLC | Gas | 1957–2026 | 9,095,009 MCF | 1 |
| HOFFMAN | UNION PACIFIC RE | Oil | 1970–1975 | 92,946 bbl | — |
| HOLBERT 1-20 | Merit Energy Company, LLC | Gas | 1957–2026 | 2,004,947 MCF | 1 |
| HOLBERT 1-20 | OXY USA Inc. | Gas | 1989–2014 | 61,674 MCF | — |
| HOLCOMB 'A' 2 | Merit Energy Company, LLC | Gas | 1975–2026 | 1,449,390 MCF | 1 |
| HOLCOMB 'B' 2 | Merit Energy Company, LLC | Gas | 1975–2026 | 1,746,750 MCF | 2 |
| HOLCOMB 1-21 | Merit Energy Company, LLC | Gas | 1957–2026 | 2,770,048 MCF | 1 |
| HOLCOMB 1-22 | Merit Energy Company, LLC | Gas | 1957–2026 | 2,694,930 MCF | 1 |
| HOLT 'A' 1 | Merit Energy Company, LLC | Gas | 1957–2026 | 1,728,607 MCF | 1 |
| HOLT 'A' 2 | Merit Energy Company, LLC | Gas | 1997–2026 | — | 2 |
| HOLT 1-15 | Service Drilling Co. L.L.C. | — | — | — | — |
| HONOUR 'A' 2H | Merit Energy Company, LLC | Gas | 1994–2026 | 499,007 MCF | 1 |
| HONOUR A-2H | Anadarko Petroleum Corporation | — | — | — | — |
| HOOPINGARNER | GRAHAM-MICHAELIS | Gas | 1968 | 63,613 MCF | 1 |
| HOOPINGARNER 'B' 1 | Merit Energy Company, LLC | Gas | 1968–2026 | 7,159,066 MCF | 1 |
| HOOPINGARNER 'C' | OXY USA Inc. | Oil | 1962–1967 | 190,458 bbl | — |
| HOOPINGARNER 'E' | OXY USA Inc. | Oil | 1964–1967 | 61,382 bbl | 1 |
| HOOPINGARNER 'F' | OXY USA Inc. | Oil | 1964–1967 | 57,759 bbl | 1 |
| HOOPINGARNER 5 | BEREXCO LLC | Gas | 1968–2026 | 4,113,267 MCF | 1 |
| HOPPINGARNER | unknown | Oil | 1960–1967 | 209,848 bbl | 1 |
| HOPPINGARNER 'D' | OXY USA Inc. | Oil | 1963–1966 | 59,630 bbl | 1 |
| HORTON 'B' | OXY USA Inc. | Gas | 1968–1979 | 1,040,825 MCF | 1 |
| HORTON 'B' | OXY USA Inc. | Oil | 1959–1967 | 130,193 bbl | — |
| HORTON 'B' 3 | Merit Energy Company, LLC | Gas | 1981–2026 | — | 3 |
| HORTON 'C' | OXY USA Inc. | Oil | 1961–1967 | 291,533 bbl | 4 |
| HORTON B #1 | OXY USA Inc. | — | — | — | — |
| HOWARD 'C' 1 | OXY USA Inc. | Gas | 1957–2006 | 909,653 MCF | 1 |
| HOWARD 'C' 2 | Merit Energy Company, LLC | Gas | 1968–2026 | 959,473 MCF | 1 |
| HOWARD 'C' 3 | Merit Energy Company, LLC | Gas | 1996–2026 | — | 1 |
| HUBBARD Gas Unit 'A' 1 | Scout Energy Management LLC | Gas | 1957–2026 | 5,283,097 MCF | 1 |
| HUBBARD Gas Unit 'A' 2 | Scout Energy Management LLC | Gas | 1974–2026 | 2,614,951 MCF | 1 |
| HUBBARD Gas Unit 'A' 3HI | Scout Energy Management LLC | Gas | 1993–2026 | 362,695 MCF | 1 |
| HUBBARD Gas Unit 'B' 1 | Scout Energy Management LLC | Gas | 1957–2026 | 4,348,258 MCF | 1 |
| HUBBARD Gas Unit 'B' 2 | BP America Production Company | Gas | 1973–1998 | 1,997,122 MCF | 1 |
| HUBBARD Gas Unit 'B' 3HI | Scout Energy Management LLC | Gas | 1992–2026 | 889,842 MCF | 1 |
| HUBBARD Gas Unit 'B' 4-A | Scout Energy Management LLC | Gas | 2001–2026 | 195,960 MCF | 1 |
| HUBER EXCHANGE | HUBER J M CORPOR | Gas | 1986–1987 | 579,447 MCF | — |
| HUBER USA 1 | Huber, J.M. Corporation | Gas | 1968–1996 | 606,502 MCF | — |
| HUGOTON | Trans Pacific Oil Corporation | Gas | 1993–1995 | 68,755 MCF | 1 |
| HULL C-2H | Merit Energy Company, LLC | Gas | 2010–2026 | 349,478 MCF | 1 |
| HUMBLE | ANADARKO PROD | Gas | 1968 | 249,500 MCF | — |
| HUMBLE | HUBER J M CORPOR | Gas | 1968 | 427,441 MCF | — |
| HUMBLE | ANADARKO PETROLE | Oil | 1956–1965 | 388,063 bbl | 4 |
| HUMBLE 'A' 1 | Merit Energy Company, LLC | Gas | 1968–2026 | 5,432,365 MCF | 3 |
| HUMBLE 'A' 5 | ANADARKO PETROLE | Gas | 1968–1992 | 585,849 MCF | 1 |
| HUMBLE 1-17 | Merit Energy Company, LLC | Gas | 1968–2026 | 4,267,205 MCF | 2 |
| HUME | SUPERIOR OIL COM | Gas | 1968–1971 | 2,487,139 MCF | 1 |
| HUNT 1-5 | Merit Energy Company, LLC | Gas | 1957–2025 | 1,486,178 MCF | 1 |
| HURT 1 | Merit Energy Company, LLC | Gas | 1968–2026 | 1,700,983 MCF | 2 |
| HUTTON | L. B. Industries, Inc. | Oil | 1990–1991 | 313 bbl | — |
| HUTTON 1-17 | BARNES HUGOTON C | Gas | 1989–1993 | 159,246 MCF | 1 |
| Haar 'E' 1 | Merit Energy Company, LLC | Gas | 1981–2026 | 679,957 MCF | 1 |
| Haar 'E' 2-H | Anadarko Petroleum Corporation | Gas | 1989–1998 | 226,883 MCF | 2 |
| Haar 'F' 1-A | Merit Energy Company, LLC | Gas | 1985–2026 | 542,929 MCF | 1 |
| Haar 'F' 3-H | Merit Energy Company, LLC | Gas | 1990–2026 | 921,736 MCF | 1 |
| Haar 'H' 1 H | Merit Energy Company, LLC | Gas | 1990–2026 | 1,230,729 MCF | 2 |
| Hall 'P' 3 | OXY USA Inc. | Oil | 2001–2002 | 430.21 bbl | 3 |
| Harmon 'A' 4 | Merit Energy Company, LLC | Gas | 2011–2026 | 247,625 MCF | 1 |
| Hayward Farms 18-1 | Merit Energy Company, LLC | Gas | 2010–2026 | 233,355 MCF | 2 |
| Hayward Farms 5-1 | EOG Resources, Inc. | Gas | 2009–2011 | 27,594 MCF | 1 |
| Hentschel 'B' 2 | Merit Energy Company, LLC | Oil | 2012–2025 | 12,962.56 bbl | 1 |
| Hentschel 'B' 2 | Merit Energy Company, LLC | Gas | 2013–2026 | — | 1 |
| Hill 'A' 2 | Merit Energy Company, LLC | Gas | 2010–2026 | 166,977 MCF | 2 |
| Hill 'B' 3 | Merit Energy Company, LLC | Gas | 2010–2026 | 373,526 MCF | 1 |
| Horizon 1-6 | Nadel and Gussman LLC | Gas | 2006–2012 | 57,563 MCF | 1 |
| Hull 33-1 | EOG Resources, Inc. | Gas | 2010 | 51,439 MCF | 1 |
| INGLE 1 | ELM III Operating Company LLC | Gas | 1968–2026 | 12,071,707 MCF | 1 |
| INGRAHAM 'A' 1 | Merit Energy Company, LLC | Gas | 1957–2026 | 4,219,545 MCF | 1 |
| INGRAHAM 'A' 2 | Merit Energy Company, LLC | Gas | 1996–2026 | — | 1 |
| INGRAHAM 'B' | HAMILTON BROTHER | Gas | 1986–1993 | 1,374,148 MCF | 1 |
| INGRAHAM B (1-1 | OXY USA Inc. | Oil | 1984–2007 | 596.98 bbl | — |
| INGRAHAM B 2 | Merit Energy Company, LLC | Gas | 2006–2026 | — | 1 |
| INSCHO 'A' 1 | Merit Energy Company, LLC | Gas | 1975–2023 | 1,441,941 MCF | 1 |
| INTERSTATE | BANKS OIL - LEE | Gas | 1972–1988 | 2,929,745 MCF | 1 |
| INTERSTATE | Anadarko Petroleum Corporation | Gas | 1981–1995 | 56,506 MCF | 1 |
| INTERSTATE | OXY USA Inc. | Gas | 1968–1974 | 1,529,780 MCF | 2 |
| INTERSTATE | BANKS OIL - LEE | Oil | 1973 | 66 bbl | — |
| INTERSTATE | ANADARKO PROD | Gas | 1968 | 982,724 MCF | — |
| INTERSTATE | ANADARKO PROD | Gas | 1968 | 254,208 MCF | — |
| INTERSTATE | ANADARKO PROD | Gas | 1968 | 188,647 MCF | — |
| INTERSTATE | unknown | Oil | 1954–1960 | 759 bbl | — |
| INTERSTATE 'A' 1 | White, Edgar W. | Gas | 1979–2003 | 472,152 MCF | 2 |
| INTERSTATE 'B' 1 | White, Edgar W. | Gas | 1968–2003 | 3,231,478 MCF | 1 |
| INTERSTATE 'B' 6 | ANADARKO PETROLE | Gas | 1981–1995 | 76,353 MCF | 1 |
| INTERSTATE 'C' | ANADARKO PETROLE | Oil | 1956–1965 | 685,920 bbl | 6 |
| INTERSTATE 'C' 1 | Merit Energy Company, LLC | Gas | 1968–2026 | 3,998,283 MCF | 2 |
| INTERSTATE 'C' 10 | San Marco Petroleum, Inc. | Gas | 1981–2008 | 583,264 MCF | 1 |
| INTERSTATE 'C' 11 | San Marco Petroleum, Inc. | Gas | 1981–2009 | 162,734 MCF | 1 |
| INTERSTATE 'C' 12 | Anadarko Petroleum Corporation | Gas | 1981–2008 | 268,179 MCF | 1 |
| INTERSTATE 'D' | unknown | Oil | 1957–1965 | 34,111 bbl | 1 |
| INTERSTATE 'D' 1 | Merit Energy Company, LLC | Gas | 1968–2020 | 1,636,479 MCF | 2 |
| INTERSTATE 'D' 2 | Merit Energy Company, LLC | Gas | 1968–2026 | 4,363,832 MCF | 3 |
| INTERSTATE 'D' 3 | Beartooth Oil & Gas Company | Gas | 1968–2003 | 700,244 MCF | 1 |
| INTERSTATE 'E' 2 | OXY USA Inc. | Gas | 1989–2012 | 607,122 MCF | 1 |
| INTERSTATE 'F' 2 | Merit Energy Company, LLC | Gas | 1968–2026 | 2,128,720 MCF | 2 |
| INTERSTATE 'F' 4 | Anadarko Petroleum Corporation | Gas | 1981–2003 | 200,880 MCF | 1 |
| INTERSTATE 'G' 4 | Merit Energy Company, LLC | Gas | 1981–2026 | — | 1 |
| INTERSTATE 'I' 2 | Anadarko Petroleum Corporation | Gas | 1968–1997 | 660,474 MCF | 1 |
| INTERSTATE 'J' 2 | Nairn, Robert | Gas | 1968–2005 | 783,309 MCF | 1 |
| INTERSTATE 02-B | White, Edgar W. | Gas | 1981–2001 | 126,633 MCF | 1 |
| INTERSTATE 1 | Beartooth Oil & Gas Company | Gas | 1968–2015 | 1,080,747 MCF | 1 |
| INTERSTATE 1-1 | Merit Energy Company, LLC | Gas | 1968–2026 | 3,003,533 MCF | 2 |
| INTERSTATE 1-10 | Merit Energy Company, LLC | Gas | 1968–2026 | 4,886,606 MCF | 3 |
| INTERSTATE 1-14 | Merit Energy Company, LLC | Gas | 1968–2026 | 1,938,321 MCF | 1 |
| INTERSTATE 1-15 | Merit Energy Company, LLC | Gas | 1968–2026 | 1,069,265 MCF | 2 |
| INTERSTATE 1-16 | Merit Energy Company, LLC | Gas | 1968–2026 | 4,288,583 MCF | 2 |
| INTERSTATE 1-2 | Merit Energy Company, LLC | Gas | 1968–2026 | 6,213,064 MCF | 2 |
| INTERSTATE 1-21 | Merit Energy Company, LLC | Gas | 1968–2026 | 13,576,926 MCF | 2 |
| INTERSTATE 1-6 | Merit Energy Company, LLC | Gas | 1968–2026 | 2,546,574 MCF | 2 |
| INTERSTATE 11 | Merit Energy Company, LLC | Gas | 1968–2026 | 2,418,179 MCF | 2 |
| INTERSTATE 12 | Anadarko Petroleum Corporation | Gas | 1981–2010 | 181,033 MCF | 1 |
| INTERSTATE 13 | Merit Energy Company, LLC | Gas | 1981–2026 | — | 1 |
| INTERSTATE 14 | Anadarko Petroleum Corporation | Gas | 1981–2011 | 270,877 MCF | 1 |
| INTERSTATE 2-20 | Merit Energy Company, LLC | Gas | 1968–2021 | 10,336,164 MCF | 3 |
| INTERSTATE A | ANADARKO PETROLE | Oil | 1956–1965 | 846,046 bbl | 7 |
| INTERSTATE B | unknown | Oil | 1956–1965 | 401,828 bbl | 5 |
| INTERSTATE C | ANADARKO PROD | Gas | 1968 | 392,403 MCF | — |
| INTERSTATE C-16 | Corlena Oil Company | Gas | 1968–2009 | 1,063,214 MCF | 1 |
| INTERSTATE E | OXY USA Inc. | Oil | 1992–1997 | 256.71 bbl | — |
| INTERSTATE PLAN | Anadarko Petroleum Corporation | Gas | 1995–1996 | 301 MCF | — |
| INTERSTATE RED CAVE 2 | White, Edgar W. | Gas | 1980–2003 | 219,002 MCF | 1 |
| INTERSTATE RED CAVE 4 | White, Edgar W. | Gas | 1982–2003 | 126,710 MCF | 1 |
| INTERSTATE RED1 | White, Edgar W. | Gas | 1980–2003 | 161,526 MCF | 1 |
| INTERSTATE U 89 | Resource Oil and Gas, LLC | Oil | 2009–2026 | 98,679.27 bbl | 8 |
| INTERSTATE UNIT | Anadarko Petroleum Corporation | Oil | 1965–1998 | 17,834,327.47 bbl | 3 |
| INTERSTATE UNIT | Anadarko Petroleum Corporation | — | — | — | — |
| ISRAEL 'A' | OXY USA Inc. | Oil | 1990–1992 | 38,576 bbl | — |
| ISRAEL 'A' | OXY USA Inc. | Gas | 1991–1996 | 444,688 MCF | — |
| ISRAEL 'A' 2 | OXY USA Inc. | Gas | 1972–2009 | 904,492 MCF | 1 |
| ISRAEL 'A' 3 | OXY USA Inc. | Gas | 1992–2011 | 1,452,715 MCF | 1 |
| ISRAEL 'A' 4 | Merit Energy Company, LLC | Gas | 1990–2026 | — | 1 |
| ISRAEL 'A' 5 | Merit Energy Company, LLC | Oil | 1989–2026 | 277,141.70 bbl | 6 |
| ISRAEL 'A' 6 | OXY USA Inc. | Gas | 1991 | 71 MCF | 1 |
| ISRAEL 'A' 7 | OXY USA Inc. | Gas | 1990–1992 | 7,577 MCF | 1 |
| ISRAEL 1 | Merit Energy Company, LLC | Gas | 1957–2026 | 5,206,272.90 MCF | 1 |
| ISRAEL A#6 | OXY USA Inc. | Oil | 1990 | 1,620 bbl | — |
| ISRAEL A-11 | OXY USA Inc. | Gas | 1996–2005 | 224,094 MCF | 1 |
| ISRAEL A10 | Merit Energy Company, LLC | Gas | 1991–2026 | — | 1 |
| ISRAEL A8 | OXY USA Inc. | Gas | 1992–2005 | 651,457 MCF | — |
| ISRAEL A9 | Merit Energy Company, LLC | Gas | 1992–2026 | 1,183,374 MCF | 1 |
| ISRAEL B 1 | OXY USA Inc. | Oil | 1988–2004 | 530,136.27 bbl | — |
| ISRAEL B-1 | OXY USA Inc. | Gas | 1989–2005 | 1,813,987 MCF | — |
| IVAN MILLS | THOMAS PETROLEUM | Oil | 1962–1975 | 248,260 bbl | 1 |
| Ingraham 'A' | OXY USA Inc. | Gas | 1990–2014 | 821,311 MCF | — |
| Israel 'B' 3 | Merit Energy Company, LLC | Oil | 2014 | 13.32 bbl | 2 |
| J. C. SHIMER 'A' 2HI | Scout Energy Management LLC | Gas | 1994–2026 | 236,716 MCF | 1 |
| J. C. SHIMER 'B' 2 | BP America Production Company | Gas | 1974–2007 | 1,336,227 MCF | — |
| J. C. SHIMER Gas Unit 'A' 1 | Scout Energy Management LLC | Gas | 1957–2026 | 2,252,765 MCF | 1 |
| J. F. SCHROEDER 16#3 | Merit Energy Company, LLC | Gas | 1995–2017 | 773,174 MCF | 1 |
| J. SMITH 'C' 1 | XTO Energy Inc. | Gas | 1968–2025 | 4,593,046 MCF | 1 |
| J. SMITH 1 | XTO Energy Inc. | Gas | 1968–2025 | 4,011,847 MCF | 1 |
Cumulative production as the Kansas Geological Survey files it, over the whole life of the lease. The monthly series on each lease page begins in 1980, so for a lease that started earlier the two are not the same figure.