UNIVERSITY "58-28"

Oil · District 7C · Lease #16554

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

25k BBL

Cum Gas

59k MCF

casinghead

Wells

2

Production

2008-02 — 2015-09

Peak Month

2008-04

Production History

Cum Oil: 24,644 BBL Cum Gas: 59,191 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,156 BBL/mo

Di (annual)

99.7%

b-factor

0.5

EUR

26,782 BBL

R-squared

0.891

type

hyperbolic

Operator History (from monthly production reports)

2008-02 — 2019-07 PIONEER NATURAL RES. USA, INC. 138 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PIONEER NATURAL RES. USA INC.19,5752007-10-19
5PIONEER NATURAL RES. USA INC.19,6502007-10-19