Oil and tribe in Yemen

"It also put at risk an alliance between Arcadia and its "local agent" in Yemen, tribal leader Hamid al-Ahmar, the cable says. Arcadia, in an interview, denied the allegations in the cable, saying it did not employ al-Ahmar as an agent, although it did work with some of his companies in the oil trading business. The company said it always paid official market prices for Yemen's export oil."