UNIVERSITY 10-13

Oil · District 7C · Lease #16900

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

1.2M BBL

Cum Gas

2.6M MCF

casinghead

Wells

9

Production

2009-02 — 2026-04

Peak Month

2013-09

Production History

Cum Oil: 1,206,247 BBL Cum Gas: 2,550,636 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

28,034 BBL/mo

Di (annual)

79.3%

b-factor

1.0

EUR

1,572,116 BBL

R-squared

0.882

type

hyperbolic

Operator History (from monthly production reports)

2009-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 210 mo

Wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
22HPIONEER NATURAL RES. USA, INC.18,4322013-11-05
23HPIONEER NATURAL RES. USA, INC.19,3112013-11-05
24HPIONEER NATURAL RES. USA, INC.18,1302013-11-05
7HPIONEER NATURAL RES. USA, INC.28,1752013-02-26
8HPIONEER NATURAL RES. USA, INC.18,4752013-02-26
9HPIONEER NATURAL RES. USA, INC.18,4752013-02-16
6HPIONEER NATURAL RES. USA, INC.315,2002012-02-10
5HPIONEER NATURAL RES. USA, INC.215,5002011-11-03
2PIONEER NATURAL RES. USA, INC.18,8002008-11-15