The Ontario Ministry of Natural Resources regulates the oil and natural gas industry through the Ontario Oil, Gas, and Salt Resources Act, Regulation 245/97 and the Provincial Operating Standards, which are designed to ensure the highest standards of safety and operational practices for oil, natural gas exploration and production, hydrocarbon storage and salt/solution mining.
The full text of these documents can be read at:
Ontario Oil, Gas and Salt Resources Act
Ontario Oil, Gas and Salt Resources – Provincial Operating Standards