* Crude futures rally on U.S. jobs report * Brent/U.S. crude spread narrows * North Dakota crude pipeline shut after leak NEW YORK, May 3 (Reuters) - U.S. cash crude differentialswere mixed on Friday, but most weakened as the transatlanticspread between Brent and U.S. crude futures narrowed. Crude futures rose on Friday after data showingbetter-than-expected U.S. job growth raised the prospect ofstronger demand for oil. In the U.S. cash crude market, Light Louisiana Sweet for June delivery traded at $10.70, $10.75, $11.15 and $11.30above the U.S. June crude futures contract, also known byits benchmark crude grade West Texas Intermediate (WTI). WTI is the U.S. light, sweet crude contract's benchmarkgrade deliverable at Cushing, Oklahoma. Those LLS differentials were weaker after Thursday's tradescompleted from $11.25 to $11.40 above the benchmark futures. Expectations that maintenance this month at a BP gasprocessing plant in Pascagoula, Mississippi, will shut in a someGulf of Mexico oil production had caused most differentials tostrengthen on Thursday. Also supportive to differentials this week were expectationsfor higher demand from refiners returning units from seasonalmaintenance, traders and brokers said. On Friday, June barrels of Thunder Horse crude, froma BP production platform in Gulf of Mexico, had offers pegged at$10.50 over the benchmark, 10 cents stronger from where offerswere seen on Friday. It traded at $9.90 over on Wednesday. Another Gulf of Mexico-produced grade, Mars sour ,traded at $6.70, $7.00 and $7.20 above the benchmark futures,after trading Thursday in a wide range, from $5.90 to $7.40above the benchmark futures. Eugene Island traded at $9.30 above the benchmark,weaker than offers pegged on Thursday at $9.80 over. Southern Green Canyon traded at $5.60 and $6.85 overthe benchmark futures, after its bid/offer spread had beenpegged on Thursday at $6.10/$6.80 over the benchmark. MIDLAND GRADES Crude grades in West Texas strengthened as Midland gradesremained supported by the expected early May restart of a crudeunit at Valero Energy Corp's McKee, Texas, refineryafter a turnaround, according to traders and brokers. Recently improved pipeline capacity from the Midland, Texasregion to the U.S. Gulf Coast's refineries has also helpedsupport differentials, traders said. West Texas Intermediate crude at Midland traded at 60and 65 cents over benchmark futures, following Thursday's tradesat 35 and 40 cents over. West Texas Sour crude, also at Midland, traded at 65cents over the benchmark, also firmer after Thursday's trades at25 and 35 cents over. BRENT/WTI SPREAD Brent's premium to U.S. crude ended at $8.58 abarrel on Friday based on June contract settlements, lower afterending at $8.86 on Thursday. The premium was as low as $8.49 and as high as $9.36 duringFriday's session. The premium fell to $8.39 during Wednesday'ssession, the narrowest the spread has been intraday since June. Usually the wider the arbitrage, the more supportive forU.S. cash crude differentials and a narrower spread oftenpressures differentials. This holds especially for sweet gradesthat are priced in line with other global waterborne crudes suchas Brent. CRUDE FUTURES PUSH HIGHER Brent June crude rose $1.34, or 1.3 percent, tosettle at $104.19 a barrel. U.S. June crude rose $1.62, or 1.7 percent, to settleat $95.61 a barrel. (Reporting by Robert Gibbons, editing by G Crosse)