CASS-ERNEST E20W

Oil · District 08 · Lease #60182

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

208k BBL

Cum Gas

622k MCF

casinghead

Wells

1

Production

2023-11 — 2026-04

Peak Month

2023-12

Production History

Cum Oil: 207,946 BBL Cum Gas: 621,708 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

31,112 BBL/mo

Di (annual)

401.9%

b-factor

0.7

EUR

273,423 BBL

R-squared

0.959

type

hyperbolic

Operator History (from monthly production reports)

2023-11 — 2026-07 PIONEER NATURAL RES. USA, INC. 33 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
23HPIONEER NATURAL RES. USA, INC.110,5032023-02-13