CHAPMAN

Oil · District 04 · Lease #13487

Operator: VENTEX OPERATING CORP.

Cum Oil

51k BBL

Cum Gas

43k MCF

casinghead

Wells

2

Production

2008-03 — 2021-10

Peak Month

2008-04

Production History

Cum Oil: 51,377 BBL Cum Gas: 42,795 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

845 BBL/mo

Di (annual)

60.9%

b-factor

0.1

EUR

18,470 BBL

R-squared

0.906

type

hyperbolic

Operator History (from monthly production reports)

2008-03 — 2022-07 VENTEX OPERATING CORP. 173 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3044VENTEX OPERATING CORP.212,5002013-07-10
8044VENTEX OPERATING CORP.314,5002008-05-01