UNDERWOOD "B"

Oil // district 5 // lease#3617

op: SPARTAN OPERATING COMPANY, INC.

cum_oil

87k BBL

cum_gas

0 MCF

wells

2

production

1998-06 — 2026-03

peak_month

2001-01

-- production_history

cum_oil: 87,144 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,341 BBL/mo

Di (annual)

41.4%

b-factor

0.4

EUR

62,453 BBL

R-squared

0.755

type

hyperbolic

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3LCT ENERGY, LP27,0002017-01-12
1SPARTAN OPERATING COMPANY, INC.16,0001998-03-18
EOF // data source: Texas Railroad Commission // 2026