Oneok rhymes with:
achenbach, albach, allebach, aschenbach, ashok, auerbach, balbach, blalock, blelloch, blumenstock, bollenbach, breidenbach, breitenbach, burbach, carelock, cuauhtemoc, czechoslovak, diefenbach, dieffenbach, dubach, eisenbach, eschenbach, estock, fehrenbach, fustok, gemsbok, glotzbach, griesbach, halbach, hasselbach, haverstock, himmelsbach, hollenbach, ibach, iranamok, itzhak, kallenbach, kalmbach, kaltenbach, klotzbach, knoblock, kovach, krebsbach, kurtenbach, langenbach, lautenbach, lauterbach, lingelbach, lompoc, luckenbach, luttwak, manitowoc, mcclintock, monadnock, moredock, morelock, murdoch, murdock, ogonyok, orbach, pasok, reebok, reidenbach, rickenbach, riggenbach, rockenbach, rohrbach, rossbach, sarawak, schlabach, schubach, sendelbach, shahrokh, shryock, sternbach, sulzbach, urbach, vanscoyoc, vladivostok, volokh, waldoch, waldock, wambach, warnock, weidenbach, weisenbach, wilcock, yitzhak, zirkelbach
Oneok sounds like:
oehmens, ohioans, ohm's, ohms, ohnemus, omaha's, omans, omega, omens, ominous, onassis, onassis', onassis's, once, one's, oneness, ones, ones', onex, onex's, ong, onions, onishi, ons, onus, onyx, ounce, ounces, owen's, owens, owens's, owing, owings, owning, owns