BIGBY, W.A. "A"

Oil · District 7C · Lease #14103

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

2k BBL

Cum Gas

14k MCF

casinghead

Wells

1

Production

1995-11 — 1997-10

Peak Month

1995-11

Production History

Cum Oil: 2,269 BBL Cum Gas: 13,960 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

111 BBL/mo

Di (annual)

18.2%

b-factor

0.3

EUR

9,933 BBL

R-squared

0.505

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 1998-05 PIONEER NATURAL RES. USA, INC. 9 mo
1995-11 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 22 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3PIONEER NATURAL RES. USA, INC.18,4701980-09-12