Major gas producers have sounded warnings over Queensland's decision to raise royalties on liquefied natural gas, saying the shock move puts in doubt future investment in the state and threatens the competitiveness of the industry. ConocoPhillips, a part-owner of the $25 billion Australia Pacific LNG project in Queensland, said it was disappointed by the Palaszczuk government's "surprise" 25 per cent increase in gas royalty rates in Tuesday's state budget.The move lifts the state's royalty on gas from 10 per cent to 12.5 per cent of production measured at market value. "As a significant investor in Queensland and ... (full story)