Libya : Gaddhafi forces bombard edge of rebel-held Ajdabiyah. Rebels and loyalists trade accusations over oil cut-off. With our correspondent Chris Moore in Ajdabiyah.An offensive by pro-Gaddafi troops in eastern Libya has brought oil production in rebel-held fields to a halt. Libyan rebels said the government was responsible, while Libyan officials blamed a British air strike for the production cut-off.