CALVERLEY 4

Oil · District 08 · Lease #44546

Operator: RSP PERMIAN, LLC

Cum Oil

71k BBL

Cum Gas

428k MCF

casinghead

Wells

3

Production

2013-08 — 2025-10

Peak Month

2014-05

Production History

Cum Oil: 71,191 BBL Cum Gas: 428,177 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,199 BBL/mo

Di (annual)

67.3%

b-factor

0.4

EUR

64,180 BBL

R-squared

0.881

type

hyperbolic

Operator History (from monthly production reports)

2018-08 — 2026-07 COG OPERATING LLC 96 mo
2014-09 — 2018-07 RSP PERMIAN, LLC 47 mo
2013-08 — 2014-08 ADVENTURE EXPL PARTNERS II, LLC 13 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2RSP PERMIAN LLC18,4502014-08-21
2ADIAMONDBACK E&P LLC112,0002014-02-28
1ACOG OPERATING LLC112,0002013-04-29