GUITAR 19

Oil · District 08 · Lease #42037

Operator: SM ENERGY COMPANY

Cum Oil

147k BBL

Cum Gas

595k MCF

casinghead

Wells

4

Production

2011-09 — 2026-04

Peak Month

2013-08

Production History

Cum Oil: 146,522 BBL Cum Gas: 594,661 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,840 BBL/mo

Di (annual)

41.7%

b-factor

0.3

EUR

115,718 BBL

R-squared

0.781

type

hyperbolic

Operator History (from monthly production reports)

2024-08 — 2026-07 OXYROCK OPERATING, LLC 24 mo
2017-07 — 2024-07 CROWNQUEST OPERATING, LLC 85 mo
2017-01 — 2017-06 SM ENERGY COMPANY 6 mo
2015-08 — 2016-12 QSTAR OPERATING LLC 17 mo
2011-09 — 2015-07 MIDLAND OIL AND GAS, INC. 47 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4OXYROCK OPERATING, LLC110,5002012-10-26
3OXYROCK OPERATING, LLC110,5002012-10-24
2OXYROCK OPERATING, LLC110,5002011-11-01
1OXYROCK OPERATING, LLC211,0002011-04-07