ALLEN

Oil // district 13 // lease#28760

op: SKAGGS IRREVOCABLE TRUST

cum_oil

17k BBL

cum_gas

0 MCF

wells

3

production

1994-03 — 2026-03

peak_month

2005-11

-- production_history

cum_oil: 17,297 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

247 BBL/mo

Di (annual)

388.4%

b-factor

1.3

EUR

6,595 BBL

R-squared

0.390

type

hyperbolic

-- wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4CLARK OPERATING INC.19801995-11-01
3CLARK OPERATING11,5501994-01-24
1CLARK OPERATING21,5501993-12-28
EOF // data source: Texas Railroad Commission // 2026