HIRSH "C"

Oil · District 7C · Lease #12578

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

42k BBL

Cum Gas

214k MCF

casinghead

Wells

1

Production

1993-01 — 2020-05

Peak Month

1993-09

Production History

Cum Oil: 41,813 BBL Cum Gas: 213,996 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

416 BBL/mo

Di (annual)

21.3%

b-factor

0.7

EUR

46,860 BBL

R-squared

0.923

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2026-04 PIONEER NATURAL RES. USA, INC. 344 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.18,5501988-08-09