< leases

TXL "W"

Oil · District 08 · Lease #34011

Operator: PIONEER NATURAL RES. USA, INC.

Fields: SPRABERRY (TREND AREA)

Cum Oil

113k BBL

Cum Gas

331k MCF

casinghead

Wells

2

Production

1993-11 — 2026-04

Peak Month

2008-04

Production History

Cum Oil: 113,157 BBL Cum Gas: 330,619 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

917 BBL/mo

Di (annual)

79.6%

b-factor

1.5

EUR

81,041 BBL

R-squared

0.442

type

hyperbolic

Operator History (from monthly production reports)

2024-08 — 2026-07 OXYROCK OPERATING, LLC 24 mo
2022-06 — 2024-07 CROWNQUEST OPERATING, LLC 26 mo
1997-09 — 2022-05 PIONEER NATURAL RES. USA, INC. 297 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-11 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 16 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
242-173-33344OXYROCK OPERATING, LLC110,0002007-08-11
142-173-32362OXYROCK OPERATING, LLC18,7001993-09-20