Echelon Resources Limited engages in the exploration and production of oil and gas properties in New Zealand, Australia, and Indonesia. It also develops, produces, and sells natural gas, liquefied petroleum gas, and condensate. The company was formerly known as New Zealand Oil & Gas Limited and Echelon Resources Limited in July 2024. The company was incorporated in 1981 and is headquartered in Wellington, New Zealand. Echelon Resources Limited operates as a subsidiary of O.G. Oil & Gas (Singapore) Pte Ltd.