WASHINGTON, D.C. --- The U.S. average retail price for regular gasoline climbed 3.4 cents last week to reach $3.038 per gallon as of Aug. 7, which is 67.0 cents higher than last year. Prices rose for the sixth week in a row, hitting above the $3 mark for the third week in a row, according to the Energy Department's Energy Information Administration (EIA). This was the second highest nominal weekly price on record. East Coast prices rose 2.0 cents to $3.033 per gallon, while the Rocky Mountains added 5.7 cents to reach $2.996 per gallon. The Midwest saw the largest regional price increase, gaining 6.8 cents to $3.054 per gallon. West Coast prices remained the highest in the nation, falling 0.3 cent to $3.118 per gallon. California prices dropped 0.6 cent to $3.192 per gallon. Retail diesel fuel prices gained 7.5 cents to reach $3.055 per gallon as of Aug. 7, 64.8 cents higher than last year and the highest price since Oct. 24. Diesel fuel prices were up throughout the country, with the Rocky Mountains seeing the largest increase of 15.6 cents to $3.208 per gallon, now the highest regional price in the country. West Coast prices added 4.7 cents to reach $3.113 per gallon. California prices rose 3.7 cents to $3.130 per gallon.