PHILLIPS-GUTHRIE

Oil · District 08 · Lease #39987

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

108k BBL

Cum Gas

241k MCF

casinghead

Wells

2

Production

2009-11 — 2026-04

Peak Month

2015-05

Production History

Cum Oil: 107,987 BBL Cum Gas: 241,438 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,061 BBL/mo

Di (annual)

123.2%

b-factor

0.7

EUR

53,734 BBL

R-squared

0.390

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2009-11 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 182 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC412,0002018-05-11
2DIAMONDBACK E&P LLC112,0002014-10-06