STEPHENS 6-31 G

Oil · District 08 · Lease #60006

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

440k BBL

Cum Gas

1.0M MCF

casinghead

Wells

2

Production

2023-03 — 2026-04

Peak Month

2023-12

Production History

Cum Oil: 439,651 BBL Cum Gas: 1,001,224 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

81,899 BBL/mo

Di (annual)

441.0%

b-factor

0.5

EUR

444,173 BBL

R-squared

0.956

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2023-03 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 22 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
171DIAMONDBACK E&P LLC111,0002022-09-19
272DIAMONDBACK E&P LLC111,0002022-09-19