MARMOT 55-14 UNIT

Oil · District 08 · Lease #45124

Operator: COTERRA ENERGY OPERATING CO.

Cum Oil

661k BBL

Cum Gas

4.3M MCF

casinghead

Wells

2

Production

2013-11 — 2026-04

Peak Month

2015-06

Production History

Cum Oil: 660,874 BBL Cum Gas: 4,310,566 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

14,952 BBL/mo

Di (annual)

47.0%

b-factor

0.4

EUR

617,595 BBL

R-squared

0.795

type

hyperbolic

Operator History (from monthly production reports)

2025-11 — 2026-07 COTERRA ENERGY OPERATING CO. 9 mo
2013-11 — 2025-10 CIMAREX ENERGY CO. 144 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HCOTERRA ENERGY OPERATING CO.111,3302014-08-15
1HCOTERRA ENERGY OPERATING CO.211,4712013-06-20