UNIVERSITY 10-11B

Oil · District 7C · Lease #21339

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

262k BBL

Cum Gas

1.4M MCF

casinghead

Wells

1

Production

2021-04 — 2026-04

Peak Month

2021-12

Production History

Cum Oil: 261,764 BBL Cum Gas: 1,364,373 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

26,245 BBL/mo

Di (annual)

579.5%

b-factor

1.0

EUR

309,303 BBL

R-squared

0.943

type

hyperbolic

Operator History (from monthly production reports)

2021-04 — 2026-07 PIONEER NATURAL RES. USA, INC. 64 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HPIONEER NATURAL RES. USA, INC.19,8642020-01-30