BRUMLEY "A"

Oil · District 8A · Lease #69139

Operator: PIONEER EXPLORATION, LTD.

Cum Oil

246k BBL

Cum Gas

38k MCF

casinghead

Wells

13

Production

2007-08 — 2026-03

Peak Month

2008-08

Production History

Cum Oil: 246,110 BBL Cum Gas: 37,960 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

5,764 BBL/mo

Di (annual)

39.0%

b-factor

0.2

EUR

221,558 BBL

R-squared

0.863

type

hyperbolic

Operator History (from monthly production reports)

2010-04 — 2026-07 ATLAS OPERATING LLC 196 mo
2008-02 — 2010-03 PIONEER EXPLORATION, LLC 26 mo
2007-08 — 2008-01 PIONEER EXPLORATION, LTD. 6 mo

Wells (13)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
28ATLAS OPERATING LLC13,9752008-08-21
27ATLAS OPERATING LLC13,9752008-07-16
26ATLAS OPERATING LLC13,9752008-07-02
25ATLAS OPERATING LLC13,9752008-06-20
23ATLAS OPERATING LLC13,9752008-04-22
20ATLAS OPERATING LLC13,9752008-01-18
21ATLAS OPERATING LLC13,9752008-01-14
19ATLAS OPERATING LLC13,9752008-01-10
22ATLAS OPERATING LLC13,9752008-01-10
18ATLAS OPERATING LLC13,9752007-11-06
17ATLAS OPERATING LLC13,9752007-03-27
16ATLAS OPERATING LLC23,9752007-03-13
15ATLAS OPERATING LLC13,9752007-02-28