HOLCOMB 39-40

Oil · District 08 · Lease #50238

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

1.8M BBL

Cum Gas

3.4M MCF

casinghead

Wells

4

Production

2018-03 — 2026-04

Peak Month

2020-07

Production History

Cum Oil: 1,763,828 BBL Cum Gas: 3,402,178 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

67,500 BBL/mo

Di (annual)

300.5%

b-factor

1.4

EUR

2,438,074 BBL

R-squared

0.960

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2018-03 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 82 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
221DIAMONDBACK E&P LLC111,0002019-05-16
241DIAMONDBACK E&P LLC111,0002019-05-16
211DIAMONDBACK E&P LLC111,0002017-08-15
212DIAMONDBACK E&P LLC111,0002017-08-15