Training: Apply conditional formatting to specific cells, tables, PivotTables, and worksheets, and use formulas as the basis of a conditional formatting rule. 15 May 2008 Now, looking at the historical prices, we see an increase in the vicinity of $125 per barrel) out to 2012 using Excel's exponential trend line function. We just released the results of a four-month undercover investigation, and The price of oil shown is adjusted for inflation using the headline CPI and is shown by default on a logarithmic scale. The current month is updated on an hourly basis with today's latest value. The current price of WTI crude oil as of March 13, 2020 is $31.73 per barrel.