ZEKE EAST I 22-21

Oil · District 7C · Lease #20998

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

583k BBL

Cum Gas

1.2M MCF

casinghead

Wells

1

Production

2020-01 — 2026-04

Peak Month

2020-03

Production History

Cum Oil: 582,641 BBL Cum Gas: 1,225,123 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

42,919 BBL/mo

Di (annual)

153.8%

b-factor

0.4

EUR

555,393 BBL

R-squared

0.847

type

hyperbolic

Operator History (from monthly production reports)

2021-06 — 2026-07 PIONEER NATURAL RES. USA, INC. 62 mo
2020-01 — 2021-05 DE3 OPERATING LLC 17 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4409HPIONEER NATURAL RES. USA, INC.29,5002019-08-02