Petrocorp rhymes with:
metrocorp, metrocorp, metrocorp, infocorp, metrocorp, bankcorp, citicorp, commercebancorp, deltacorp, dyncorp, equiticorp, francorp, gencorp, healthcorp, infocorp, intellicorp, intercorp, mcorp, metrocorp, newscorp, nucorp, pennbancorp, penncorp, unibancorp, unicorp, usbancorp, wespercorp, westcorp, worldcorp