COOK RANCH 85WS

Oil // district 8 // lease#31366

op: STASNEY WELL SERVICE, LLC

fields: COOK RANCH

cum_oil

41k BBL

cum_gas

0 MCF

wells

14

production

2013-12 — 2026-03

peak_month

2017-03

-- production_history

cum_oil: 40,597 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

928 BBL/mo

Di (annual)

85.0%

b-factor

0.7

EUR

33,628 BBL

R-squared

0.748

type

hyperbolic

-- wells (14)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
103STASNEY WELL SERVICE, LLC12,0002021-10-18
86STASNEY WELL SERVICE, LLC24,0002017-11-07
25STASNEY WELL SERVICE, LLC22,0002017-08-17
99STASNEY WELL SERVICE, LLC22,0002017-07-06
95STASNEY WELL SERVICE, LLC12,0002015-01-29
96STASNEY WELL SERVICE, LLC12,0002015-01-14
93STASNEY WELL SERVICE, LLC12,0002014-11-19
94STASNEY WELL SERVICE, LLC12,0002014-11-19
89STASNEY WELL SERVICE, LLC12,0002014-01-21
89TSTASNEY WELL SERVICE, LLC12,0002014-01-21
90STASNEY WELL SERVICE, LLC12,0002014-01-21
91STASNEY WELL SERVICE, LLC12,0002014-01-21
92STASNEY WELL SERVICE, LLC12,0002014-01-21
88STASNEY WELL SERVICE, LLC12,0002013-11-01
EOF // data source: Texas Railroad Commission // 2026