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The Canadian government has begun implementation of a federal carbon tax program that will extend the increase in the cost of diesel fuel for all truckers, including those from the United States, doing business in all 10 Canadian provinces.

Bipartisan legislation that would extend the biodiesel tax credit by two years was recently introduced in the U.S. House of Representatives.

The U.S. average retail price of diesel climbed 1.5 cents to $3.093 a gallon, and crude oil prices pushed past $64 a barrel to post a five-month high, the Department of Energy reported April 8.

Fiat Chrysler Automobiles NV is pooling its fleet with Tesla Inc. to comply with stricter European Union rules on carbon dioxide emissions in a deal that is likely to pay the U.S. electric-car leader hundreds of millions of dollars.

As negotiations over Michigan’s annual budget pick up the pace, fissures are developing between the Republican-led Legislature and Democratic Gov. Gretchen Whitmer over the perennial problem of road funding.

Colorado’s Legislature passed a sweeping overhaul of the state’s oil and natural gas laws, giving local governments more power to regulate drilling in one of the nation’s top crude-producing regions.

The stubborn, sharp rise in Canadian heavy crude prices finally may falter later this year, when swelling output overwhelms a pipeline system that will be lacking a key project producers had counted on, according to Deloitte.

The U.S. retail diesel average price dipped 0.2 cent to $3.078 a gallon, the Department of Energy reported, as the price of crude oil surged past $61 a barrel amid tighter supplies.