UNIVERSITY-RATLIFF E58-7K

Oil · District 7C · Lease #22110

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

329k BBL

Cum Gas

461k MCF

casinghead

Wells

1

Production

2023-03 — 2026-04

Peak Month

2023-08

Production History

Cum Oil: 328,763 BBL Cum Gas: 460,849 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

22,570 BBL/mo

Di (annual)

237.6%

b-factor

1.2

EUR

734,623 BBL

R-squared

0.887

type

hyperbolic

Operator History (from monthly production reports)

2023-03 — 2026-07 PIONEER NATURAL RES. USA, INC. 41 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
11HPIONEER NATURAL RES. USA, INC.110,1652022-08-12