DURHAM "B"

Oil · District 09 · Lease #28382

Operator: SPADE ENERGY L.L.C.

Cum Oil

19k BBL

Cum Gas

262k MCF

casinghead

Wells

1

Production

1993-01 — 2025-09

Peak Month

1993-05

Production History

Cum Oil: 19,426 BBL Cum Gas: 262,251 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

190 BBL/mo

Di (annual)

15.6%

b-factor

0.0

EUR

14,507 BBL

R-squared

0.814

type

exponential

Operator History (from monthly production reports)

2025-11 — 2026-07 PETERSON OIL AND GAS LLC 9 mo
2025-06 — 2025-10 SPADE ENERGY L.L.C. 5 mo
2020-07 — 2025-05 PETERSON OIL AND GAS LLC 59 mo
1993-01 — 2020-06 FELDERHOFF PRODUCTION COMPANY 330 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4FELDERHOFF PRODUCTION COMPANY15,7001989-03-16