MARY 18D

Oil · District 7C · Lease #22060

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

370k BBL

Cum Gas

597k MCF

casinghead

Wells

1

Production

2023-03 — 2026-04

Peak Month

2023-12

Production History

Cum Oil: 369,946 BBL Cum Gas: 597,496 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

20,704 BBL/mo

Di (annual)

62.2%

b-factor

0.0

EUR

399,351 BBL

R-squared

0.906

type

exponential

Operator History (from monthly production reports)

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

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HPIONEER NATURAL RES. USA, INC.18,9002022-12-27