SARAH "A"

Oil · District 08 · Lease #37008

Operator: R K PETROLEUM CORP.

Cum Oil

28k BBL

Cum Gas

96k MCF

casinghead

Wells

2

Production

2002-11 — 2019-11

Peak Month

2008-11

Production History

Cum Oil: 28,181 BBL Cum Gas: 96,394 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

454 BBL/mo

Di (annual)

38.9%

b-factor

0.5

EUR

25,401 BBL

R-squared

0.588

type

hyperbolic

Operator History (from monthly production reports)

2021-10 — 2022-10 DIAMONDBACK E&P LLC 13 mo
2020-04 — 2021-09 QEP ENERGY COMPANY 18 mo
2006-09 — 2020-03 PIONEER NATURAL RES. USA, INC. 163 mo
2002-11 — 2006-08 R K PETROLEUM CORP. 46 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2DIAMONDBACK E&P LLC110,2002008-06-18
1DIAMONDBACK E&P LLC212,0002002-08-08