SALLY -A-

Oil · District 08 · Lease #28712

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

86k BBL

Cum Gas

268k MCF

casinghead

Wells

2

Production

1993-01 — 2020-04

Peak Month

2014-01

Production History

Cum Oil: 85,682 BBL Cum Gas: 268,433 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,343 BBL/mo

Di (annual)

243.4%

b-factor

0.5

EUR

32,447 BBL

R-squared

0.506

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2025-02 PIONEER NATURAL RES. USA, INC. 330 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.111,6002013-07-08
1PIONEER NATURAL RES. USA INC.19,5001983-12-29