SIMPSON

Oil · District 08 · Lease #34101

Operator: STEPHENS, AUTRY C.

Cum Oil

152k BBL

Cum Gas

314k MCF

casinghead

Wells

2

Production

1994-03 — 2024-08

Peak Month

2001-06

Production History

Cum Oil: 152,459 BBL Cum Gas: 313,808 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,198 BBL/mo

Di (annual)

10.2%

b-factor

0.1

EUR

152,412 BBL

R-squared

0.789

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2000-09 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 292 mo
1994-03 — 2000-08 STEPHENS, AUTRY C. 78 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC110,0001994-01-11
1DIAMONDBACK E&P LLC210,0001993-12-27