J. W. MCCULLOUGH "A" UNIT

Oil · District 08 · Lease #47697

Operator: PERMIAN RESOURCES OPERATING, LLC

Cum Oil

421k BBL

Cum Gas

653k MCF

casinghead

Wells

2

Production

2015-11 — 2026-04

Peak Month

2019-08

Production History

Cum Oil: 421,227 BBL Cum Gas: 653,006 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

9,972 BBL/mo

Di (annual)

38.0%

b-factor

0.3

EUR

444,669 BBL

R-squared

0.532

type

hyperbolic

Operator History (from monthly production reports)

2024-11 — 2026-07 PERMIAN RESOURCES OPERATING, LLC 21 mo
2015-11 — 2024-10 OXY USA WTP LP 108 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12HPERMIAN RESOURCES OPERATING, LLC214,0002017-11-03
11HPERMIAN RESOURCES OPERATING, LLC413,0002015-03-09