With the dramatic decline in oil prices since the summer of 2014, oil and gas explorers have cut back significantly on capital investment. This is due to both declining cash flows and also to the difficulty in raising new capital as the value of existing reserves to  borrow against or to initiate new exploration, fell.Energy investment shrinks

Natural gas price glutOilpatch braces for deeper spending cuts
oIlpatch woes largely contained to Alberta13 January 2016
Oilsands firms can’t stop producing
Struggling gas producers looking to sell
Energy investment fund winds down
KKR closes Calgary office – Canadian Press
Canada not a market we love
Clean energy jobs surpass oil and gas jobs in U.S.
More Oilpatch capex cuts CNRL
Conference Board- economic unease to spread
More pain in the oilpatch as banks tighten up on credit
Natural gas plunge to lowest level since 1985