192 Results Calgary based oil and natural gas exploration, development and production BG is a leading international energy company that is actively This list of companies and startups in Calgary, Alberta in the oil and gas space provides data on their funding history, investment activities, and acquisition trends. Insights about top trending companies, startups, investments and M&A activities, notable investors of these companies, their management team, and recent news are also included. In fact, the Calgary-based company’s U.S. subsidiary is named EnCana Oil & Gas. Those particular operations are located across more than 4,000 square miles of visibly barren but clandestinely teeming soil throughout much of the United States. EnCana’s richest deposits are found in New Mexico’s San Juan Basin,