Echelon Resources Limited (ASX:ECH), formerly New Zealand Oil & Gas Limited, is an Australasian energy exploration and production company headquartered in Wellington, New Zealand, and founded in 1981. The company explores, appraises, develops, produces, and sells crude oil, natural gas, liquefied petroleum gas, and condensate across Australia, New Zealand, and Indonesia; its core assets include stakes in the Kupe oil and gas field and Tui Area oil field in New Zealand's Taranaki Basin, the Mereenie, Palm Valley, and Dingo oil and gas fields in Australia's Amadeus Basin, Perth Basin interests such as L7 production license and EP437 exploration permit, and indirect holdings via its approximately 50% ownership of Cue Energy Resources Limited. Echelon operates through segments encompassing Perth Basin exploration, Kupe production, Amadeus Basin fields, and Cue Energy Resources, targeting domestic energy markets with a focus on gas to support energy transition needs. In July 2024, the company rebranded from New Zealand Oil & Gas Limited to Echelon Resources Limited with a new ASX ticker ECH, reflecting its expanded portfolio and strategic pivot toward ethical gas production; it completed a 25% acquisition in Mereenie licences in June 2024, boosting group reserves by 41% to 23 million barrels of oil equivalent, delisted from NZX Main Board in June 2024, and acquired EP-145 in Australia from Mosman Oil and Gas for AUD 0.40 million.