WILLIS "A"

Oil · District 08 · Lease #32923

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

53k BBL

Cum Gas

184k MCF

casinghead

Wells

1

Production

1993-01 — 2022-01

Peak Month

1994-04

Production History

Cum Oil: 52,568 BBL Cum Gas: 183,842 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

236 BBL/mo

Di (annual)

19.6%

b-factor

0.0

EUR

14,395 BBL

R-squared

0.356

type

exponential

Operator History (from monthly production reports)

1997-09 — 2025-05 PIONEER NATURAL RES. USA, INC. 333 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.19,2251990-10-25