WALLING & COSTLEY -A-

Oil · District 08 · Lease #34571

Operator: RECOVERY OPERATING LP

Fields: WARD, SOUTH

Cum Oil

18k BBL

Cum Gas

2k MCF

casinghead

Wells

7

Production

1995-05 — 2026-04

Peak Month

1997-07

Production History

Cum Oil: 17,680 BBL Cum Gas: 2,402 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

275 BBL/mo

Di (annual)

30.3%

b-factor

0.3

EUR

15,227 BBL

R-squared

0.540

type

hyperbolic

Operator History (from monthly production reports)

2026-06 — 2026-07 HAILSTONE RESOURCES, LLC 2 mo
2019-02 — 2026-05 RECOVERY OPERATING LP 88 mo
2014-04 — 2019-01 D & V OIL CO., LP 58 mo
1999-01 — 2014-03 FISHER OIL CO. 183 mo
1996-11 — 1998-12 HAM OIL & GAS, INC. 26 mo
1996-01 — 1996-10 MARTIN, JIMMY INC 10 mo
1995-05 — 1995-12 JAG OIL COMPANY 8 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2RECOVERY OPERATING LP12,7001988-02-29
2ARECOVERY OPERATING LP12,7001988-02-29
1ARECOVERY OPERATING LP12,7001988-02-03
3ARECOVERY OPERATING LP12,7001988-02-03
142-475-00471RECOVERY OPERATING LP------
1142-475-30193RECOVERY OPERATING LP------
2W42-475-00470RECOVERY OPERATING LP------