< leases

CALVIN, WILLIAM

Oil · District 03 · Lease #21178

Operator: WILDHORSE RESOURCES MNGT CO, LLC

Fields: GIDDINGS (AUSTIN CHALK-3)

Cum Oil

276k BBL

Cum Gas

516k MCF

casinghead

Wells

1

Production

1993-01 — 2026-03

Peak Month

1994-07

Production History

Cum Oil: 276,354 BBL Cum Gas: 515,649 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

4,061 BBL/mo

Di (annual)

54.3%

b-factor

0.8

EUR

243,343 BBL

R-squared

0.918

type

hyperbolic

Operator History (from monthly production reports)

2023-03 — 2026-07 WILDFIRE ENERGY OPERATING LLC 41 mo
2019-06 — 2023-02 CHESAPEAKE OPERATING, L.L.C. 45 mo
2017-07 — 2019-05 WILDHORSE RESOURCES MNGT CO, LLC 23 mo
2013-01 — 2017-06 ANADARKO E&P ONSHORE LLC 54 mo
2002-12 — 2012-12 ANADARKO E&P COMPANY LP 121 mo
2001-02 — 2002-11 RME PETROLEUM COMPANY 22 mo
1993-01 — 2001-01 UNION PACIFIC RESOURCES COMPANY 97 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
142-051-33228WILDFIRE ENERGY OPERATING LLC210,4001994-02-04