DEVIL'S WATERHOLE UNIT

Oil // district 1 // lease#3996

op: WILLIAMS KOLB & LINDENBORN, INC.

cum_oil

243k BBL

cum_gas

0 MCF

wells

9

production

1993-01 — 2026-03

peak_month

1999-04

-- production_history

cum_oil: 243,117 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

3,120 BBL/mo

Di (annual)

27.9%

b-factor

0.0

EUR

134,357 BBL

R-squared

0.793

type

exponential

-- wells (9)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
L 1PETRO-LEWIS CORPORATION18,8001984-09-27
A 142-311-30014--------
A 2V42-311-30053--------
L 10D42-311-30055--------
L 11D42-311-30052--------
L 4A42-311-30003--------
L 542-311-80428--------
L 642-311-30016--------
L 842-311-30028--------
EOF // data source: Texas Railroad Commission // 2026