Source: Board of Governors of the Federal Reserve System (US)  

Release: G.5 Foreign Exchange Rates  

Units:  Canadian Dollars to One U.S. Dollar, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

Averages of daily figures. Noon buying rates in New York City for cable transfers payable in foreign currencies.

This data series is updated from the source files in the Data Download Program (http://www.federalreserve.gov/datadownload/Choose.aspx?rel=h10). The files are updated on a weekly basis every Monday. If Monday is a holiday, the data files are updated the next business day.

Monthly values are averages of the daily data available. Preliminary value for the current month is provided by the source even if not all daily values are available for the entire month.

Please note that the values reported on the press release may not correspond to the values in the Data Download Program when the press release is published on a day other than Monday. This inconsistency is resolved on the next available weekly release date.

Source: U.S. Energy Information Administration  

Release: Spot Prices  

Units:  Dollars per Barrel, Not Seasonally Adjusted

Frequency:  Monthly

Notes:

Definitions, Sources and Explanatory Notes:
http://www.eia.doe.gov/dnav/pet/TblDefs/pet_pri_spt_tbldef2.asp