Page 7 - SubTerra Engineering Corporate Profile - 2021 v2

Work/Roles

Project /
Owner Timeline Wash / Mining / Conversions Completions / Workovers Details

FEED/AFE Design Regulatory Procurement Drilling MIT Construction Disposal Wells AUDIT

Voda 2021- X X X X X 1 x Disposal Workover
Midstream Current

2 x Cavern Solution
Pure 2021-
Environmental Current X X X X X Mining and Workover
support

NOVA 2021 X Disposal Well
Chemicals Integrity Management

Comprehensive
Compass
Minerals 2020 X X X X Cavern Design
Reviews
1 x Re-Entry Disposal
4 x Disposal Well
(New drill)
2017 -
Tervita X X X X X X X X 3 x Caverns currently
2020
mining
1 x Disposal Well
Completion

6 x Cavern Workovers
2020-
Pembina X X X X X X 6 x Mechanical
2021
Integrity Tests
Legacy from Provident
Energy.
2012 –
Pembina NGL X X X X X X X 18 x Caverns under
2016
Pembina Banner.

11 x Cavern wells.
Provident 2006 – X X X X X X X 1 x Disposal well.
Energy Ltd 2012 Company sold to
Pembina NGL in 2012.