ZEKE WEST F 22-21

Oil · District 7C · Lease #20972

Operator: PIONEER NATURAL RES. USA, INC.

Cum Oil

523k BBL

Cum Gas

1.6M MCF

casinghead

Wells

2

Production

2020-01 — 2026-04

Peak Month

2020-05

Production History

Cum Oil: 522,929 BBL Cum Gas: 1,602,866 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

69,326 BBL/mo

Di (annual)

669.7%

b-factor

0.8

EUR

470,859 BBL

R-squared

0.800

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 (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4206HPIONEER NATURAL RES. USA, INC.29,5002019-08-09
4406HPIONEER NATURAL RES. USA, INC.29,5002019-08-09