UNIVERSITY "4-8"

Oil · District 7C · Lease #16925

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

396k BBL

Cum Gas

557k MCF

casinghead

Wells

4

Production

2009-03 — 2026-04

Peak Month

2013-04

Production History

Cum Oil: 395,524 BBL Cum Gas: 557,492 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,917 BBL/mo

Di (annual)

10.8%

b-factor

0.0

EUR

435,174 BBL

R-squared

0.373

type

exponential

Operator History (from monthly production reports)

2009-03 — 2026-07 PIONEER NATURAL RES. USA, INC. 209 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HPIONEER NATURAL RES. USA, INC.18,9252012-11-14
3HPIONEER NATURAL RES. USA, INC.18,9002012-11-13
2DPIONEER NATURAL RES. USA, INC.14,9252012-04-20
1PIONEER NATURAL RES. USA, INC.210,5002009-03-23