LONDON—Oil prices slipped on Friday, with some supply concerns easing after a partial export resumption from Kazakhstan’s CPC crude terminal. Brent crude fell $1.29, or 1.1 percent, to $117.74 a barrel at 1049 GMT and U.S. West Texas Intermediate (WTI) crude slid $1.80, or 1.6 percent, to $110.54 after both had dropped more than 2 percent the previous session. Despite the fall, both benchmarks were heading for their first weekly gain in three weeks. Brent was on track for a 9 percent jump and WTI for a 6 percent rise as broader supply concerns sparked by Russia’s invasion of Ukraine underpinned the market. Concerns were heightened after the Caspian Pipeline Consortium (CPC) terminal on Russia’s Black Sea coast stopped exports on Wednesday after being damaged by a storm. The terminal partially resumed oil loadings on Friday, according to shipping data on Refinitiv Eikon. The United States and Britain, both less …