HARVARD -A-

Oil · District 08 · Lease #28986

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

37k BBL

Cum Gas

92k MCF

casinghead

Wells

1

Production

1993-01 — 2024-02

Peak Month

1999-04

Production History

Cum Oil: 36,892 BBL Cum Gas: 91,961 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

155 BBL/mo

Di (annual)

4.4%

b-factor

0.2

EUR

40,644 BBL

R-squared

0.776

type

hyperbolic

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.19,1001984-04-18