GRAHAM 19 STATE UNIT

Oil · District 08 · Lease #42826

Operator: CIMAREX ENERGY CO.

Cum Oil

1.1M BBL

Cum Gas

1.8M MCF

casinghead

Wells

4

Production

2012-02 — 2026-04

Peak Month

2013-08

Production History

Cum Oil: 1,144,427 BBL Cum Gas: 1,805,382 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

24,275 BBL/mo

Di (annual)

56.2%

b-factor

0.4

EUR

843,347 BBL

R-squared

0.776

type

hyperbolic

Operator History (from monthly production reports)

2024-08 — 2026-07 APACHE CORPORATION 24 mo
2018-09 — 2024-07 CALLON PETROLEUM OPERATING CO 71 mo
2012-02 — 2018-08 CIMAREX ENERGY CO. 79 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4HAPACHE CORPORATION111,2002012-07-27
3HAPACHE CORPORATION111,0002012-03-23
1HAPACHE CORPORATION111,5002011-07-25
2HAPACHE CORPORATION111,5002011-07-25