With 2013 in the rearview mirror, peak oil is beginning to create big problems for big oil. Free cash flow is like the canary in the coal mine. Earnings can be massaged with accounting magic, but it is more difficult to massage free cash flow. Total (NYSE: TOT ), along with its fellow big oil brethren, has seen its free cash flow fall significantly in 2013. Now is the time to examine the fundamentals and see just what sort of unique risks and challenges big oil faces. Oil prices are stable, but free cash flow is falling TOT Free Cash Flow (TTM) data by YCharts Sometimes, falling free cash flow is a short-term issue. Such was the case after the 2008 oil crash. Oil prices fell, and as a result free cash flow fell as well. The current downturn is different. Oil prices have remained relatively stable and yet free […]