TXL -B-

Oil · District 08 · Lease #11858

Operator: THREE RIVERS OPERATING CO LLC

Cum Oil

71k BBL

Cum Gas

325k MCF

casinghead

Wells

9

Production

1993-01 — 2010-04

Peak Month

1994-08

Production History

Cum Oil: 71,030 BBL Cum Gas: 324,695 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

586 BBL/mo

Di (annual)

8.5%

b-factor

0.2

EUR

94,638 BBL

R-squared

0.775

type

hyperbolic

Operator History (from monthly production reports)

2016-06 — 2018-04 AGHORN OPERATING, INC. 23 mo
2013-01 — 2016-05 LEGACY RESERVES OPERATING LP 41 mo
2012-08 — 2012-12 COG OPERATING LLC 5 mo
2010-04 — 2012-07 THREE RIVERS OPERATING CO LLC 28 mo
2004-05 — 2010-03 CHESAPEAKE OPERATING, INC. 71 mo
2002-08 — 2004-04 PERMIAN RESOURCES, INC. 21 mo
1999-12 — 2002-07 ST. JOHNS OPERATING #1 L.P. 32 mo
1993-01 — 1999-11 CROSS TIMBERS OPERATING COMPANY 83 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
8AGHORN OPERATING INC.24,5502009-10-06
5THREE RIVERS OPERATING CO LLC18,0002009-08-06
9PHILLIPS PETROLEUM COMPANY17,5401991-11-25
142-135-06032AGHORN OPERATING INC.------
242-135-06033AGHORN OPERATING INC.------
342-135-06034AGHORN OPERATING INC.------
442-135-06035AGHORN OPERATING INC.------
642-135-06037AGHORN OPERATING INC.------
742-135-06038AGHORN OPERATING INC.------