CAMPBELL TR. 4

Oil // district 10 // lease#37004

op: Q NATURAL RESOURCES, LLC

cum_oil

56k BBL

cum_gas

0 MCF

wells

9

production

2003-01 — 2026-03

peak_month

2003-08

-- production_history

cum_oil: 55,583 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,043 BBL/mo

Di (annual)

42.3%

b-factor

0.2

EUR

36,873 BBL

R-squared

0.509

type

hyperbolic

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
27OWL SWD OPERATING, LLC310,4002021-03-10
26OWL SWD OPERATING, LLC210,4002016-06-29
12CARLOW CORP.111,2002006-04-20
11TEXACO INC.310,4002003-05-08
33MARATHON OIL COMPANY310,4002003-04-01
29CARLOW CORP.110,4002003-03-26
14CARLOW CORP.310,2002003-02-07
15CARLOW CORP.210,2002003-01-16
36GREAT WESTERN DRLG. CO.311,2002002-11-19
EOF // data source: Texas Railroad Commission // 2026