STANFIELD -B-

Oil · District 08 · Lease #36630

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

62k BBL

Cum Gas

88k MCF

casinghead

Wells

2

Production

2000-10 — 2026-04

Peak Month

2023-04

Production History

Cum Oil: 62,052 BBL Cum Gas: 87,686 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

560 BBL/mo

Di (annual)

18.5%

b-factor

0.6

EUR

65,015 BBL

R-squared

0.646

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2000-10 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 291 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC111,0002000-05-19
142-317-30326DIAMONDBACK E&P LLC------