< leases

BLALOCK, J.R. "A"

Oil · District 06 · Lease #5682

Operator: SHELL WESTERN E&P INC.

Fields: QUITMAN (GLEN ROSE,UP)

Cum Oil

48k BBL

Cum Gas

25k MCF

casinghead

Wells

1

Production

1993-01 — 2026-03

Peak Month

1997-04

Production History

Cum Oil: 47,928 BBL Cum Gas: 24,658 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

167 BBL/mo

Di (annual)

16.8%

b-factor

0.0

EUR

11,898 BBL

R-squared

0.426

type

exponential

Operator History (from monthly production reports)

2010-04 — 2026-07 ATLAS OPERATING LLC 196 mo
2008-02 — 2010-03 PIONEER EXPLORATION, LLC 26 mo
2004-09 — 2008-01 PIONEER EXPLORATION, LTD. 41 mo
2001-11 — 2004-08 GAITHER PETROLEUM CORPORATION 34 mo
1997-06 — 2001-10 J-O'B OPERATING COMPANY 53 mo
1993-05 — 1997-05 CROSS TIMBERS OPERATING COMPANY 49 mo
1993-01 — 1993-04 SHELL WESTERN E&P INC. 4 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
842-499-00646ATLAS OPERATING LLC17,4531984-05-01