North America profits grew by 19 per cent.
The profits are being announced as GM lays off thousands of workers.
Encana will assume US$2.2 billion of Newfield debt.
Plans include approximately 197 kilometres of large diameter pipeline.
Buyout offers were made Wednesday to salaried workers in North America with 12 or more years of service.
The bump was attributed to higher oil prices and streamlined operations.
Revenue totalled $1.38 billion, up from $1.21 billion in the same quarter last year.
Manufacturing profits up 11.2% from the second quarter to $14.4 billion.
Automaker expects to sell 5.08 million vehicles for the fiscal year through March 2018.
Profit forecast for the full year remains unchanged at between 6% and 7% return on sales.
Projection based on anticipated cost reductions and higher total volumes in the second half of this year.
Revenue fell to $979 million compared with $1.31 billion in third quarter of 2015.
Manufacturer says it is feeling pressure because most of its profits come from outside North America.
Earnings boosted by higher Alberta power prices, increase in New York capacity prices and its Canadian Mainline natural gas assets.
Complete vehicle assembly sales increased 33% to US$798 million.