By CHIP CUMMINS
October 24, 2006; Page A2
With crude prices falling and oil-field costs on the rise, major oil companies have a big problem: sustaining their phenomenal profit growth.
Exxon Mobil Corp., Royal Dutch Shell PLC and BP PLC have all relied on big oil-price jumps to fuel a streak of handsome earnings gains and, in many cases, record quarterly profits in recent years. The three companies reported combined earnings of about $25 billion in the second quarter; in the third quarter of last year, they earned about $25.4 billion.