EFFIE PONDER EST. 33-18

Oil · District 08 · Lease #38719

Operator: CIMAREX ENERGY CO. OF COLORADO

Cum Oil

1.3M BBL

Cum Gas

1.4M MCF

casinghead

Wells

5

Production

2008-03 — 2026-04

Peak Month

2018-08

Production History

Cum Oil: 1,252,111 BBL Cum Gas: 1,406,343 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

25,496 BBL/mo

Di (annual)

100.8%

b-factor

1.0

EUR

1,195,828 BBL

R-squared

0.845

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
2008-03 — 2018-08 CIMAREX ENERGY CO. OF COLORADO 126 mo

Wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HAPACHE CORPORATION213,0002017-06-14
3HAPACHE CORPORATION111,1002012-05-07
2HAPACHE CORPORATION311,5002010-08-30
1APACHE CORPORATION315,2652008-06-24
1HAPACHE CORPORATION315,2652008-06-24