Oil prices slide as the US says it will sell millions more barrels of oil from its strategic reserve into the global market

• Oil prices fall Tuesday after the US said it plans to sell more oil from the Strategic Petroleum Reserve. 
• West Texas Intermediate crude dipped fell below $80 a barrel during the session. 
• The Energy Department will start the sale of 26 million barrels of sweet crude in April. 

Oil prices dropped Tuesday after the US announced plans to sell more inventory from its Strategic Petroleum Reserve, adding to the global market's already-volatile crosscurrents in supply and demand.