Crude oil futures rise ahead of NYMEX Sep crude contract expiry; ICE Brent up at $72.23/b, NYMEX WTI $67.34/b S&P Global Platts New York — Crude oil futures were slightly higher in early New York trade Tuesday as fears of a tight oil market are being played out ahead of the expiration of the NYMEX September crude futures contract. Oil builds momentum with fourth day of gains |