PHILLIPS "31"

Oil · District 08 · Lease #38583

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

231k BBL

Cum Gas

436k MCF

casinghead

Wells

4

Production

2008-01 — 2026-01

Peak Month

2010-07

Production History

Cum Oil: 230,837 BBL Cum Gas: 435,581 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,246 BBL/mo

Di (annual)

31.8%

b-factor

0.6

EUR

242,214 BBL

R-squared

0.760

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2008-01 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 204 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC213,0002017-11-13
2DIAMONDBACK E&P LLC212,0002017-11-13
3DIAMONDBACK E&P LLC212,0002017-11-13
4DIAMONDBACK E&P LLC212,0002017-11-13