Oil and gas leases in Karnes County — page 6

Karnes County, Texas has 3,456 oil and gas leases with production on file at the Railroad Commission. 1,768 of them are oil leases and 1,688 are gas leases. Between them they carry 6,870 wellbores. Reported volumes run from January 1993 to August 2026 and come to 1.2 billion barrels of oil and 2.0 billion Mcf of gas. 196 operators file returns here. Every lease below has its own page with a decline-curve forecast and an estimate of what the whole lease is worth.

Key facts about Karnes County

How many oil and gas leases are in Karnes County?
Karnes County has 3,456 oil and gas leases with production reported to the Railroad Commission of Texas, as of August 2026.
How much oil and gas has Karnes County produced?
Leases in Karnes County have reported 1,206,104,073 barrels of oil (bbl) and 2,026,634,613 thousand cubic feet of gas (Mcf) to the Railroad Commission of Texas between January 1993 and August 2026.
How many operators are active in Karnes County?
196 operators file production returns for leases in Karnes County.
How much are mineral rights in Karnes County worth?
There is no single figure: what a mineral or royalty interest in Karnes County is worth depends on the individual lease, its decline, and the share the owner holds. Each of the 3,456 leases listed here has its own page with the full production history the operator reported, a decline-curve forecast, and an estimate of what a royalty interest in it is worth today.

Leases — page 6 of 18

  • DAVILA-GRAHAM UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • FORSHAGE-HOWELL UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • MOY A — gas, Devon Energy Production Co, L.P., Karnes County, 1.2 million reported
  • HOLLMAN-MAY B SA — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • DROMGOOLE ''A'' - OWENS SA A — gas, Devon Energy Production Co, L.P., Karnes County, 1.2 million reported
  • CROW A — gas, Geosouthern Energy Corporation, Karnes County, 1.2 million reported
  • YANTA CATTLE CO. A-288 #1 GU — gas, Burlington Resources O & G Co LP, Karnes County, 1.2 million reported
  • GUS TIPS-RUNGE 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • SAN CHRISTOVAL RANCH UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • WESSENDORFF GAS UNIT 2 — gas, Enduring Resources, LLC, Karnes County, 1.2 million reported
  • SLAUGHTER GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • EDITH GRAY SCHENDEL USW A — oil, Burlington Resources O & G Co LP, Karnes County, 1.2 million reported
  • ARMAND UNIT — oil, Murphy Expl. & Prod. Co. - USA, Karnes County, 1.2 million reported
  • YOUNG GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • DAVILA UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • REGMUND GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • BAILEY-RETZLOFF UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • BURRIS 54 — gas, Hawthorn Energy Partners, LLC, Karnes County, 1.2 million reported
  • CHILDREN'S-WESTON UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • DOUGLAS 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.2 million reported
  • REYNOLDS GAS UNIT 1 — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • BRYSCH-ADAMS UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • DROMGOOLE ''A'' - OWENS SA B — gas, Devon Energy Production Co, L.P., Karnes County, 1.2 million reported
  • FOSTER UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • VICTORIA UNIT — oil, Eog Resources, Inc., Karnes County, 1.2 million reported
  • YANTA CENTRAL 1 — gas, Burlington Resources O & G Co LP, Karnes County, 1.2 million reported
  • NELLER GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • BEICKER — oil, 1836 Resources, LLC, Karnes County, 1.2 million reported
  • REGMUND GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • JANSSEN -A- — gas, Clay Exploration, Inc., Karnes County, 1.2 million reported
  • DULLYE 01 — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • MORGAN UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • ARMSTRONG UNIT A — oil, Burlington Resources O & G Co LP, Karnes County, 1.2 million reported
  • BOERM, MINNIE — gas, Bruns, H. D., Karnes County, 1.2 million reported
  • CROW A — gas, Geosouthern Energy Corporation, Karnes County, 1.2 million reported
  • RUNGE TOWN SITE GAS UNIT 1 — gas, Talisman Energy USA Inc., Karnes County, 1.2 million reported
  • GUS TIPS GAS UNIT 1 — gas, Talisman Energy USA Inc., Karnes County, 1.2 million reported
  • MORGAN UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • FOSTER UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • SLAUGHTER-RHODES TRUST — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • SCHENDEL-WILLEKE USW B — gas, Burlington Resources O & G Co LP, Karnes County, 1.2 million reported
  • DEBILL 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.2 million reported
  • DZIUK A-SCHENDEL A 189 SA 7 — gas, Devon Energy Production Co, L.P., Karnes County, 1.2 million reported
  • HANDY 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.2 million reported
  • PFEIFER-BELL UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • FRANKE-JOHNSON UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • TURNBULL UNIT H — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • KENNEDY — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • DAVILA UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • SCHENDEL 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.2 million reported
  • DAVIS 01 — gas, Ensign Operating LLC, Karnes County, 1.2 million reported
  • NELLER-RUNGE 2 (SA) D6 — gas, Equinor Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • FORSHAGE-HOWELL UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • ALEXANDER 01 AC — gas, Ensign Operating LLC, Karnes County, 1.2 million reported
  • SIENKIEWICZ UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • KOLO-NELLER-RHODES TRUST — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • YANTA A — oil, BHP Billiton Pet(Txla Op) Co, Karnes County, 1.2 million reported
  • MOBIL UNIT C — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • KIMBLE-GILLEY UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • MORGAN UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • TIPTON-JONAS UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • MAY B UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • AHLSTROM UNIT A — oil, Burlington Resources O & G Co LP, Karnes County, 1.2 million reported
  • JORDAN UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • LISKA 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.2 million reported
  • DZIUK A-SCHENDEL A 189 SA 4 — gas, Devon Energy Production Co, L.P., Karnes County, 1.2 million reported
  • MOBIL UNIT D AC — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • MOY A — gas, Devon Energy Production Co, L.P., Karnes County, 1.2 million reported
  • CRISP A — oil, Petrohawk Operating Company, Karnes County, 1.2 million reported
  • HEMBY UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • MONSON UNIT — gas, Ovintiv USA Inc., Karnes County, 1.2 million reported
  • SMITH-MUMME G.U. — gas, Hanson Production Company, Karnes County, 1.2 million reported
  • REYNOLDS GAS UNIT 1 — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • NEWBERRY 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.2 million reported
  • LISKA 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.2 million reported
  • TURNBULL UNIT H — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • FRANSEN UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • FRANKE UNIT — gas, Plains Exploration & Prod. Co., Karnes County, 1.2 million reported
  • MOCZYGEMBA POLLOK UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • SPEARY FAMILY TRUST UNIT A — gas, Burlington Resources O & G Co LP, Karnes County, 1.2 million reported
  • NELLER-ELIZONDO (SA) D3 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.2 million reported
  • DAVIS 01 — gas, Ensign Operating LLC, Karnes County, 1.2 million reported
  • KOLODZIEJ-PAWELEK UNIT — oil, Blackbrush O & G, LLC, Karnes County, 1.2 million reported
  • APOLLO UNIT — oil, Blackbrush O & G, LLC, Karnes County, 1.2 million reported
  • MOBIL UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • HEMBY UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.2 million reported
  • E&J YANTA - VAUGHN USW B — gas, Burlington Resources O & G Co LP, Karnes County, 1.1 million reported
  • SCHENDEL UNIT A-189 — gas, Burlington Resources O & G Co LP, Karnes County, 1.1 million reported
  • BAILEY-RETZLOFF UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MAY B UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MOCZYGEMBA JAUER UNIT AC — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • DAVILA UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MAGARIGAL GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • KOTARA UNIT — oil, Eog Resources, Inc., Karnes County, 1.1 million reported
  • SCHENDEL 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • BEST BATEMAN UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • SCHENDEL 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • WARNER 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • CHOATE 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • DAVILA-GRAHAM UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • YOSKO BORGFELD UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • WARNER 01 — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • SLAUGHTER GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • KENRUBYLIE-KENEDY (SA) A1 — gas, Repsol Oil & Gas USA, LLC, Karnes County, 1.1 million reported
  • GRAEF GAS UNIT 1 — gas, Talisman Energy USA Inc., Karnes County, 1.1 million reported
  • YOSKO UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • CROW A — gas, Devon Energy Production Co, L.P., Karnes County, 1.1 million reported
  • YANTA-REYNOLDS USW C — gas, Burlington Resources O & G Co LP, Karnes County, 1.1 million reported
  • NELLER-ELIZONDO-RUNGE 2 (SA) D4 — gas, Equinor Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • WARNER 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • HEMBY UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • BLACKJACK UNIT E — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • NELLER GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • DAVILA UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MOHR-MOCZYGEMBA UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • FRANKE-JOHNSON UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • EARNEST GAS UNIT 1 — gas, Enduring Resources, LLC, Karnes County, 1.1 million reported
  • CREEL MIXON UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • SMOLIK 01 — gas, Ensign Operating LLC, Karnes County, 1.1 million reported
  • MCALISTER UNIT — gas, Encana Oil & Gas(USA) Inc., Karnes County, 1.1 million reported
  • GILLEY UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • CREWS UNIT — gas, Ovintiv USA Inc., Karnes County, 1.1 million reported
  • LUNA UNIT — gas, Hilcorp Energy Company, Karnes County, 1.1 million reported
  • KIRK 01 — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • NELLER-ELIZONDO-RUNGE 2 (SA) D5 — gas, Equinor Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • L.B. HAILEY UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MEDINA-JONAS UNIT B — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • THIELE GAS UNIT 1 — gas, Talisman Energy USA Inc., Karnes County, 1.1 million reported
  • MOBIL UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • LISKA 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • MOY A — gas, Devon Energy Production Co, L.P., Karnes County, 1.1 million reported
  • DEWBRE-JOHNSON UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • HOLLMAN UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • ALEXANDER-WESSENDORFF 1 (SA) A5 — gas, Equinor Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • DAVIS 01 — gas, Ensign Operating LLC, Karnes County, 1.1 million reported
  • KENNEDY — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MOBIL UNIT B AC — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • GRAMM UNIT — oil, Plains Exploration & Prod. Co., Karnes County, 1.1 million reported
  • KENNEDY — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • HANDY 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • NELLER-ELIZONDO (SA) D2 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • SCHENDEL-REYNOLDS SA1 — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • DARLENE UNIT — oil, Plains Exploration & Prod. Co., Karnes County, 1.1 million reported
  • EYHORN GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • DIRECT ASSETS UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • HOLLMAN UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • NELLER GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • KIRK-LONG SA2 — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • DIRECT ASSETS UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MOY A — gas, Devon Energy Production Co, L.P., Karnes County, 1.1 million reported
  • FRANKE UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • NICHOLS A UNIT — gas, Encana Oil & Gas(USA) Inc., Karnes County, 1.1 million reported
  • MOBIL UNIT A — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • KRANER UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • NPU ( PORTER -3) — gas, Pennzoil Exploration & Prod. Co., Karnes County, 1.1 million reported
  • MUELLER B — oil, Devon Energy Production Co, L.P., Karnes County, 1.1 million reported
  • ALLMAN UNIT — oil, Eog Resources, Inc., Karnes County, 1.1 million reported
  • DRAGON — oil, 1776 Energy Operators, LLC, Karnes County, 1.1 million reported
  • DAVILA-GRAHAM UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • REYNOLDS GAS UNIT 3 — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • JENDRZEY — oil, Murphy Expl. & Prod. Co. - USA, Karnes County, 1.1 million reported
  • DAVIS 01 — gas, Ensign Operating LLC, Karnes County, 1.1 million reported
  • SCHENDEL 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • LOVE UNIT — gas, Plains Exploration & Prod. Co., Karnes County, 1.1 million reported
  • BAILEY-RETZLOFF UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • MAY B UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • WITTE-MIKKELSON UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • EGBERT-MILLER UNIT — oil, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • ALEXANDER 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • HANDY 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • STANGE, WILLIAM — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • ESCONDIDO CREEK GAS UNIT 1 — gas, Equinor Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • MURPHY-KOTARA-BARBOZA SA — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • WESSENDORFF 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • FRANKE UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • TURNBULL UNIT G — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • DAVILA UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • SAN CHRISTOVAL RANCH UNIT B — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • KRAUSE GU1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • DAVIS 01 — gas, Ensign Operating LLC, Karnes County, 1.1 million reported
  • CHARLOTTE UNIT — oil, Encana Oil & Gas(USA) Inc., Karnes County, 1.1 million reported
  • NPU (H&D-NIEHAUS -1) — gas, Pennzoil Exploration & Prod. Co., Karnes County, 1.1 million reported
  • HOLLMAN UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • WERNLI GU #1 — gas, Parker & Parsley Development Co., Karnes County, 1.1 million reported
  • WESSENDORFF 01 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • NELLER GAS UNIT 1 — gas, Statoil Texas Onshore Prop LLC, Karnes County, 1.1 million reported
  • HANDY 02 — gas, Pioneer Natural Res. USA, Inc., Karnes County, 1.1 million reported
  • MURPHY-SINCLAIR UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • FOSTER UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • HOFFMANN UNIT — oil, Encana Oil & Gas(USA) Inc., Karnes County, 1.1 million reported
  • WHITFIELD WEST UNIT — oil, Murphy Expl. & Prod. Co. - USA, Karnes County, 1.1 million reported
  • DROMGOOLE 'B' UNIT — gas, Ovintiv USA Inc., Karnes County, 1.1 million reported
  • MOBIL UNIT B AC — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • REYNOLDS GAS UNIT — gas, Paloma Resources, LLC, Karnes County, 1.1 million reported
  • HEMBY UNIT 'A' — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • HOLLMAN UNIT AC — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • FOSTER UNIT — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • TURNBULL UNIT H — gas, Marathon Oil Ef LLC, Karnes County, 1.1 million reported
  • WILLEKE UNIT A — gas, Burlington Resources O & G Co LP, Karnes County, 1.1 million reported
  • DZIUK A — gas, Devon Energy Production Co, L.P., Karnes County, 1.1 million reported

Production figures are as reported to the Railroad Commission of Texas. Values shown on lease pages are estimates produced by fitting a decline curve to that reported history; they are not offers or appraisals.