crude oil prices were marginally lower on friday but on track to cap off their strongest twoweek streak of gains since april as production cuts and a weaker us dollar have pushed prices higher   west texas intermediate crude for august delivery cl00 clq24 fell by 14 cents or 02 to 7662 a barrel on the new york mercantile exchange   september brent crude brn00 brnu23 fell by 14 cents or 02 to 8123 a barrel on ice futures europe   august gasoline rbq23 declined marginally to 261 a gallon while august heating oil was marginally higher at 261 a gallon crude oil futures are on track to rise for a second straight month in july having erased all of their losses from may and then some signs that us inflation is waning more quickly than economists had expected undermined bond yields and the dollar fell sharply in the past week helping to boost prices of many dollardenominated commodities including oil “the narrative that the federal reserve is winning the fight against inflation got a boost as both cpi and ppi came in weaker than expected this week leading to a fresh rally for stocks oil bonds and foreign currencies” said fawad razaqzada market analyst at city index and forexcom “the fact that the dollar fell this has helped to boost the prices of all buckdenominated assets including crude oil gold silver and copper” the ice us dollar index dxy  a gauge of the us dollar’s strength compared with its main rivals rose 01 to 9989 early friday but the index hit its lowest level in more than a year a day earlier