SPEARMAN, ROBERT "A"

Oil · District 03 · Lease #13787

Operator: WILDHORSE RESOURCES MNGT CO, LLC

Cum Oil

40k BBL

Cum Gas

140k MCF

casinghead

Wells

2

Production

1993-01 — 2019-06

Peak Month

1996-01

Production History

Cum Oil: 40,182 BBL Cum Gas: 140,340 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

581 BBL/mo

Di (annual)

41.4%

b-factor

0.6

EUR

34,623 BBL

R-squared

0.768

type

hyperbolic

Operator History (from monthly production reports)

2019-06 — 2020-10 CHESAPEAKE OPERATING, L.L.C. 17 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 (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1CHESAPEAKE OPERATING, L.L.C.38,5001994-11-21
2CHESAPEAKE OPERATING L.L.C.17,7041981-03-04