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BAGHDAD — Iraq began piping oil from its fields around the disputed city of Kirkuk on Nov. 16, more than a year after exports were halted over troubles with the autonomous Kurdish administration north of the country.

Natural gas took a breather after its biggest gain in eight years as forecasts for lingering U.S. cold spurred concern supplies may not be enough to meet winter demand.

The U.S. average retail price of diesel dropped 2.1 cents to $3.317 a gallon Nov. 13 as the price of West Texas Intermediate crude oil fell to an 11-month low.

A Montana federal judge’s ruling that threatens to further delay TransCanada Corp.’s Keystone XL pipeline comes at one of the worst possible times for the Canadian oil industry.

Voters demonstrated a reluctance to approve new funding measures but a commitment to securing existing funds for transportation purposes during the Nov. 6 election.

The wind changed again in a stormy oil market as OPEC signaled it will consider a return to cutting output next year, potentially making the second production U-turn this year.

California voters on Nov. 6 rejected Proposition 6, a measure to repeal a recent increase in the state’s gas tax and one that, in many ways, determines the fate of California’s roads, bridges and transit.

Anadarko Petroleum Corp., Noble Energy Inc. and other companies exploring for oil and natural gas in Colorado jumped in pre-market trading Nov. 7 after voters rejected a plan that sought to limit their ability to drill in the state.

The U.S. average retail price of diesel dropped 1.7 cents to $3.338 a gallon as prices for West Texas Intermediate crude oil continued to sink despite concerns that global supplies could fall amid U.S.-imposed sanctions on Iran. It was the third consecutive weekly decline in the price of diesel.

Oil traded near a six-month low as the prospects of a tight global market at the end of the year further receded after the U.S. softened the restart of sanctions against Iran.