UNIVERSITY 4-7B

Oil · District 7C · Lease #21264

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

221k BBL

Cum Gas

438k MCF

casinghead

Wells

1

Production

2021-02 — 2026-04

Peak Month

2021-03

Production History

Cum Oil: 220,580 BBL Cum Gas: 438,249 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,412 BBL/mo

Di (annual)

211.1%

b-factor

1.0

EUR

382,716 BBL

R-squared

0.927

type

hyperbolic

Operator History (from monthly production reports)

2021-02 — 2026-07 PIONEER NATURAL RES. USA, INC. 66 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HPIONEER NATURAL RES. USA, INC.310,3292019-10-17