DOUGLAS MINERAL TRUST -G-

Oil // district 13 // lease#14991

op: WILSON-SHAB CORP.

cum_oil

259k BBL

cum_gas

0 MCF

wells

14

production

1993-01 — 2026-03

peak_month

1993-10

-- production_history

cum_oil: 259,220 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

1,050 BBL/mo

Di (annual)

3.8%

b-factor

0.0

EUR

279,576 BBL

R-squared

0.490

type

exponential

-- wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
14EXTEX OPERATING COMPANY14,0002012-02-28
13M & A OIL COMPANY, LTD.14,0001981-10-19
12SHAB OIL COMPANY14,0001979-07-10
10SHAB OIL COMPANY14,0001978-12-21
11SHAB OIL COMPANY14,0001978-12-21
9SHAB OIL COMPANY14,0001978-09-27
8SHAB OIL COMPANY14,0001977-12-20
142-485-00037--------
242-485-90782--------
342-485-90783--------
442-485-21147--------
542-485-21152--------
642-485-21145--------
742-485-90787--------
EOF // multi-state drilling data platform // 2026