HIRSH "A"

Oil · District 7C · Lease #12425

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

58k BBL

Cum Gas

259k MCF

casinghead

Wells

1

Production

1993-01 — 2020-05

Peak Month

1994-06

Production History

Cum Oil: 57,594 BBL Cum Gas: 258,695 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

347 BBL/mo

Di (annual)

7.2%

b-factor

0.2

EUR

63,955 BBL

R-squared

0.740

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2025-10 PIONEER NATURAL RES. USA, INC. 338 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.18,6501988-02-05