UNIVERSITY -U-

Oil // district 10 // lease#9642

op: MACK ENERGY CORPORATION

cum_oil

561k BBL

cum_gas

0 MCF

wells

6

production

1993-01 — 2026-03

peak_month

2022-01

-- production_history

cum_oil: 561,343 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

10,858 BBL/mo

Di (annual)

68.7%

b-factor

1.4

EUR

968,545 BBL

R-squared

0.852

type

hyperbolic

-- wells (6)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
7HBURLESON PETROLEUM, INC.19,0002021-03-23
5MACK ENERGY CORPORATION27,5002018-04-26
6HBURLESON PETROLEUM, INC.19,0002016-08-11
4KERR-MCGEE CORPORATION16,6501991-10-01
142-003-04619--------
242-003-04645--------
EOF // data source: Texas Railroad Commission // 2026