HARKINS, T. I. "D"

Oil // district 2 // lease#7126

op: TALLGRASS ENERGY, L.L.C.

cum_oil

54k BBL

cum_gas

0 MCF

wells

1

production

1993-01 — 2026-03

peak_month

1993-06

-- production_history

cum_oil: 54,246 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

721 BBL/mo

Di (annual)

22.6%

b-factor

0.3

EUR

52,890 BBL

R-squared

0.739

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4MARDAM EXPLORATION, INC.15,6001985-07-01
EOF // data source: Texas Railroad Commission // 2026