CHAPMAN 21

Oil · District 08 · Lease #44482

Operator: OXYROCK OPERATING, LLC

Cum Oil

31k BBL

Cum Gas

117k MCF

casinghead

Wells

1

Production

2013-07 — 2026-04

Peak Month

2013-09

Production History

Cum Oil: 30,511 BBL Cum Gas: 117,326 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

873 BBL/mo

Di (annual)

93.5%

b-factor

0.8

EUR

33,516 BBL

R-squared

0.520

type

hyperbolic

Operator History (from monthly production reports)

2024-08 — 2026-07 OXYROCK OPERATING, LLC 24 mo
2013-07 — 2024-07 CROWNQUEST OPERATING, LLC 133 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1OXYROCK OPERATING, LLC112,0002013-06-04