COX, X. B. "C"

Oil · District 7C · Lease #12142

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

79k BBL

Cum Gas

139k MCF

casinghead

Wells

3

Production

1993-01 — 2023-04

Peak Month

2014-06

Production History

Cum Oil: 79,291 BBL Cum Gas: 139,266 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

874 BBL/mo

Di (annual)

29.3%

b-factor

0.1

EUR

39,654 BBL

R-squared

0.843

type

hyperbolic

Operator History (from monthly production reports)

1997-09 — 2026-02 PIONEER NATURAL RES. USA, INC. 342 mo
1995-03 — 1997-08 PARKER & PARSLEY DEVELOPMENT L.P 30 mo
1994-08 — 1995-02 MIDPAR L.P. 7 mo
1993-01 — 1994-07 PG&E RESOURCES COMPANY 19 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6PIONEER NATURAL RES. USA, INC.28,5502001-01-23
4PIONEER NATURAL RES. USA INC.28,5071993-05-13
5PIONEER NATURAL RES. USA INC.28,5891987-02-03