GREENHAW -11-

Oil · District 08 · Lease #36236

Operator: STEPHENS, AUTRY C.

Cum Oil

101k BBL

Cum Gas

189k MCF

casinghead

Wells

1

Production

2000-01 — 2026-02

Peak Month

2000-03

Production History

Cum Oil: 101,332 BBL Cum Gas: 189,076 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,045 BBL/mo

Di (annual)

15.6%

b-factor

0.2

EUR

98,291 BBL

R-squared

0.799

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
2000-01 — 2000-08 STEPHENS, AUTRY C. 8 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC411,0002018-07-12