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PUMPHREY, J. B.

Oil · District 7B · Lease #9890

Operator: THREE RIVERS OPERATING CO LLC

Fields: PUMPHREY, NORTH (CONGLOMERATE)

Cum Oil

185k BBL

Cum Gas

119k MCF

casinghead

Wells

5

Production

1993-01 — 2026-04

Peak Month

1997-07

Production History

Cum Oil: 184,828 BBL Cum Gas: 119,233 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,246 BBL/mo

Di (annual)

8.1%

b-factor

0.0

EUR

181,845 BBL

R-squared

0.897

type

exponential

Operator History (from monthly production reports)

2021-02 — 2026-07 EXTEX OPERATING COMPANY 66 mo
2013-01 — 2021-01 LEGACY RESERVES OPERATING LP 97 mo
2012-08 — 2012-12 COG OPERATING LLC 5 mo
2010-04 — 2012-07 THREE RIVERS OPERATING CO LLC 28 mo
2002-02 — 2010-03 CHESAPEAKE OPERATING, INC. 98 mo
2000-08 — 2002-01 SAPIENT ENERGY CORP 18 mo
2000-04 — 2000-07 FALCON CREEK RESOURCES, INC. 4 mo
1993-01 — 2000-03 CROSS TIMBERS OPERATING COMPANY 87 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
842-433-33052EXTEX OPERATING COMPANY16,2001996-08-19
742-433-32850EXTEX OPERATING COMPANY16,2001993-06-22
642-433-31826EXTEX OPERATING COMPANY16,2001984-04-27
242-433-10022EXTEX OPERATING COMPANY------
342-433-10412EXTEX OPERATING COMPANY------