DUPREE B

Oil · District 08 · Lease #52458

Operator: QEP ENERGY COMPANY

Cum Oil

677k BBL

Cum Gas

2.4M MCF

casinghead

Wells

3

Production

2019-07 — 2026-04

Peak Month

2019-09

Production History

Cum Oil: 676,825 BBL Cum Gas: 2,440,040 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

71,368 BBL/mo

Di (annual)

244.8%

b-factor

0.5

EUR

689,571 BBL

R-squared

0.967

type

hyperbolic

Operator History (from monthly production reports)

2021-10 — 2026-07 DIAMONDBACK E&P LLC 58 mo
2019-07 — 2021-09 QEP ENERGY COMPANY 27 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
13MADIAMONDBACK E&P LLC28,2232018-08-03
14WADIAMONDBACK E&P LLC29,5412018-08-03
15SCDIAMONDBACK E&P LLC29,1162018-08-03