East coast demand to soar as oil giants hog gas for export projects OIL giants Shell and PetroChina have refused to offer new domestic gas supply from their vast Queensland coal-seam gas reserves, warehousing all the gas for an LNG export project that is yet to be approved due to high Australian construction costs. Amid concerns of a looming east coast gas shortage, it is understood the pair's Brisbane-based Arrow Energy joint venture has been approached by at least two domestic major east coast gas buyers but has been unwilling to take part in the tender process.