WILLIAMS, E. P. "A"

Oil · District 7C · Lease #14097

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

8k BBL

Cum Gas

67k MCF

casinghead

Wells

1

Production

1995-11 — 2009-07

Peak Month

2005-03

Production History

Cum Oil: 8,345 BBL Cum Gas: 66,611 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

285 BBL/mo

Di (annual)

96.2%

b-factor

0.5

EUR

6,686 BBL

R-squared

0.833

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2015-04 PIONEER NATURAL RES. USA, INC. 212 mo
1995-11 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 22 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2PIONEER NATURAL RES. USA INC.18,5001978-11-06