THELMA

Oil · District 08 · Lease #39146

Operator: QEP ENERGY COMPANY

Cum Oil

37k BBL

Cum Gas

56k MCF

casinghead

Wells

1

Production

2008-08 — 2025-04

Peak Month

2009-01

Production History

Cum Oil: 37,168 BBL Cum Gas: 56,024 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

867 BBL/mo

Di (annual)

50.1%

b-factor

0.6

EUR

43,764 BBL

R-squared

0.720

type

hyperbolic

Operator History (from monthly production reports)

2021-10 — 2026-07 DIAMONDBACK E&P LLC 58 mo
2020-04 — 2021-09 QEP ENERGY COMPANY 18 mo
2008-08 — 2020-03 PIONEER NATURAL RES. USA, INC. 140 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DIAMONDBACK E&P LLC110,0002008-04-14