GREATHOUSE 13-12 D

Oil · District 7C · Lease #20131

Operator: ENDEAVOR ENERGY RESOURCES L.P.

Cum Oil

528k BBL

Cum Gas

2.7M MCF

casinghead

Wells

2

Production

2018-09 — 2026-04

Peak Month

2018-11

Production History

Cum Oil: 527,678 BBL Cum Gas: 2,695,663 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

24,296 BBL/mo

Di (annual)

127.4%

b-factor

0.9

EUR

832,331 BBL

R-squared

0.983

type

hyperbolic

Operator History (from monthly production reports)

2025-01 — 2026-07 DIAMONDBACK E&P LLC 19 mo
2018-09 — 2024-12 ENDEAVOR ENERGY RESOURCES L.P. 76 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242DIAMONDBACK E&P LLC111,0002018-05-04
241DIAMONDBACK E&P LLC111,0002018-04-02