BP has signalled an accelerated effort to bring down costs ahead, refusing to rule out further job losses as artificial intelligence (AI) technology helps drive efficiencies.The company, which revealed in January that it was to axe almost 8,000 workers and contractors globally as part of a cost-cutting plan, said alongside its second quarter results that it was to review its portfolio of businesses and examine its cost base again. Money latest: Aldi 'loses cheapest supermarket title' Subscribe to our Money ...