(EnergyAsia, March 10) — Australian upstream company Antares Energy Limited said its operating profit for the half year to December 31 2004 rose 15% to A$8.2 million. (US$1=A$1.25).   After subtracting general and administrative expenses, but before interest, tax, depreciation, amortisation and exploration write-offs (EBITDAX), operating profit was A$6.2 million, compared to the $5.9 million…