UNIVERSITY 7-23

Oil · District 08 · Lease #39047

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

220k BBL

Cum Gas

369k MCF

casinghead

Wells

8

Production

2008-11 — 2014-08

Peak Month

2012-08

Production History

Cum Oil: 219,686 BBL Cum Gas: 368,645 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

6,212 BBL/mo

Di (annual)

32.8%

b-factor

0.0

EUR

226,927 BBL

R-squared

0.524

type

exponential

Operator History (from monthly production reports)

2008-11 — 2014-10 PIONEER NATURAL RES. USA, INC. 72 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7PIONEER NATURAL RES. USA, INC.112,0002011-10-14
8PIONEER NATURAL RES. USA, INC.112,0002011-10-14
5PIONEER NATURAL RES. USA, INC.211,6502011-02-10
6PIONEER NATURAL RES. USA, INC.211,6502011-02-10
3PIONEER NATURAL RES. USA, INC.211,6502010-12-29
2PIONEER NATURAL RES. USA, INC.111,5002010-02-11
4PIONEER NATURAL RES. USA, INC.111,5002010-02-11
1PIONEER NATURAL RES. USA, INC.111,0002008-08-27