UNIVERSITY 58-19A

Oil · District 7C · Lease #16761

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

121k BBL

Cum Gas

226k MCF

casinghead

Wells

3

Production

2008-10 — 2025-10

Peak Month

2013-10

Production History

Cum Oil: 120,927 BBL Cum Gas: 226,222 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,557 BBL/mo

Di (annual)

114.5%

b-factor

0.5

EUR

31,539 BBL

R-squared

0.520

type

hyperbolic

Operator History (from monthly production reports)

2008-10 — 2026-07 PIONEER NATURAL RES. USA, INC. 214 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5PIONEER NATURAL RES. USA INC.110,8002012-02-17
9PIONEER NATURAL RES. USA INC.210,8002011-04-07
7PIONEER NATURAL RES. USA INC.19,6752008-06-13