Futures in New York rose as much as 0.6 percent after adding 2.5 percent in the past three sessions. An industry report showed U.S. inventories fell last week, with government data Wednesday forecast to show a fourth straight drop. Crude’s recent gains have been driven by fighting between the Iraqi government and Kurdish forces in the oil-rich Kirkuk region, which could stoke tensions beyond the country’s borders. Iraq is just one of the oil market’s geopolitical risks, with uncertainty also growing over tensions between Iran and the U.S., Goldman Sachs Group Inc. said Tuesday. The Persian Gulf nation said it would support an extension of OPEC output cuts to the end of 2018 and insisted its production plans won’t be disrupted by U.S. President Donald Trump’s disavowal of the nuclear deal that’s boosted its exports. Click Read More below for additional information.

The major freight railroads appear unwilling to give track maintenance workers much more than they received in the initial contract they rejected last week, increasing the chances of a strike. The railroads took the unusual step of issuing a statement late Wednesday rejecting the Brotherhood of Maintenance of Way Employes Division union’s latest request to add paid sick time on top of the 24% raises and $5,000 in bonuses they received in the first five-year deal. Union Pacific CEO Lance Fritz said Thursday that he thinks the main reason the BMWED rejected its initial contract last week was that the details of improved expense reimbursement in the deal were still being negotiated at Union Pacific while workers were voting. So it wasn’t clear exactly what those workers would receive for their travel expenses when they go on the road to repair tracks. Six of the 12 railroad unions that represent 115,000 workers nationwide have approved their tentative agreements with the railroads so far, but all of them have to ratify their contracts to avoid a strike.

Futures climbed as much as 1.7 percent in New York, paring Wednesday’s 4.1 percent loss. Crude and gasoline inventories both dropped by more than by 5.5 million barrels last week, the American Petroleum Institute was said to report. Government data Thursday is also forecast to show supplies fell. Oil remains in a bear market amid concerns that rising supply from Libya to the U.S. will counter production cuts from the Organization of Petroleum Exporting Countries and its partners including Russia. American crude stockpiles are more than 100 million barrels above the five-year average. Click Read More below for additional detail.