UNIVERSITY -23W-

Oil // district 9 // lease#8690

op: OTB OPERATING, LLC

cum_oil

125k BBL

cum_gas

0 MCF

wells

5

production

1993-01 — 2026-03

peak_month

2012-08

-- production_history

cum_oil: 124,654 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

923 BBL/mo

Di (annual)

5.6%

b-factor

0.0

EUR

186,140 BBL

R-squared

0.396

type

exponential

-- wells (5)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5MWS PRODUCING, INC.12,5002013-08-19
4MWS PRODUCING, INC.12,5002012-11-06
3MWS PRODUCING, INC.12,5002012-02-22
2MWS PRODUCING, INC.12,6502010-08-09
1CRAIN OIL CO.12,4501980-11-10
EOF // data source: Texas Railroad Commission // 2026