RICKER -B-

Oil · District 7C · Lease #4580

Operator: STEPHENS, AUTRY C.

Cum Oil

43k BBL

Cum Gas

654k MCF

casinghead

Wells

2

Production

1993-01 — 2026-04

Peak Month

1993-04

Production History

Cum Oil: 42,940 BBL Cum Gas: 653,533 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

277 BBL/mo

Di (annual)

8.2%

b-factor

0.0

EUR

40,125 BBL

R-squared

0.758

type

exponential

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
1993-01 — 2000-08 STEPHENS, AUTRY C. 92 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC18,2001983-11-01
142-383-10102DIAMONDBACK E&P LLC------