SHAFFER "15"

Oil · District 08 · Lease #38516

Operator: GUIDON ENERGY MGMT SERVICES LLC

Cum Oil

58k BBL

Cum Gas

72k MCF

casinghead

Wells

1

Production

2007-11 — 2025-02

Peak Month

2009-08

Production History

Cum Oil: 57,881 BBL Cum Gas: 72,323 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

762 BBL/mo

Di (annual)

55.7%

b-factor

0.8

EUR

44,707 BBL

R-squared

0.428

type

hyperbolic

Operator History (from monthly production reports)

2021-01 — 2026-07 DIAMONDBACK E&P LLC 67 mo
2016-10 — 2020-12 GUIDON ENERGY MGMT SERVICES LLC 51 mo
2007-11 — 2016-09 ENDEAVOR ENERGY RESOURCES L.P. 107 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC212,0002016-06-09