OLDHAM

Oil · District 08 · Lease #28791

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

58k BBL

Cum Gas

173k MCF

casinghead

Wells

1

Production

1993-01 — 2006-02

Peak Month

1999-03

Production History

Cum Oil: 58,223 BBL Cum Gas: 173,493 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

545 BBL/mo

Di (annual)

8.5%

b-factor

0.0

EUR

75,681 BBL

R-squared

0.675

type

exponential

Operator History (from monthly production reports)

1997-09 — 2026-07 PIONEER NATURAL RES. USA, INC. 347 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.19,1001984-01-12