| Text | Length |
| Ohio noggins | 12 |
| Ohio or Iowa | 12 |
| Ohio or Missouri | 16 |
| Ohio players | 12 |
| Ohio political clan | 19 |
| Ohio politician? | 16 |
| Ohio pro, for short | 19 |
| Ohio River feeder | 17 |
| Ohio rubber center | 18 |
| Ohio rubber city | 16 |
| Ohio senator | 12 |
| Ohio setting? | 13 |
| Ohio sitcom station | 19 |
| Ohio state flowers | 18 |
| Ohio State players | 18 |
| Ohio statesman | 14 |
| Ohio summer hrs. | 16 |
| Ohio sweaters? | 14 |
| Ohio tire center | 16 |
| Ohio tire city | 14 |
| Ohio tire town | 14 |
| Ohio tornado city | 17 |
| Ohio university | 15 |
| Ohio vehicle | 12 |
| Ohio's area | 15 |
| Ohio's __ State | 19 |
| Ohio, e.g.: Abbr. | 17 |
| Ohio, for one | 13 |
| Ohio, to René | 16 |
| Ohio-Indiana river | 18 |
| Ohm or ampere | 13 |
| Ohm or joule, e.g. | 18 |
| Ohm or Solti | 12 |
| Ohm's symbol | 16 |
| Ohmage symbol | 13 |
| Ohms times amperes | 18 |
| Ohms x amperes | 14 |
| Oho, puzzlers! | 14 |
| Ohs' partners | 17 |
| Ohs, in Germany | 15 |
| Oil additive | 12 |
| Oil alternative | 15 |
| Oil and coal | 12 |
| Oil and gas company | 19 |
| Oil and water, e.g. | 19 |
| Oil apparatus | 13 |
| Oil apparatuses | 15 |
| Oil assessor? | 13 |
| Oil baron J. Paul | 17 |
| Oil baron, often | 16 |
| Oil billionaire | 15 |
| Oil by the barrel | 17 |
| Oil can abbr. | 13 |
| Oil can letters | 15 |
| Oil can, maybe | 14 |
| Oil cartel briefly | 19 |
| Oil cartel acronym | 18 |
| Oil cartel initials | 19 |
| Oil cartel letters | 18 |
| Oil center in Iran | 18 |
| Oil center in Okla. | 19 |
| Oil change chain | 16 |
| Oil change go-with | 18 |
| Oil change unit | 15 |
| Oil city of Iran | 16 |
| Oil companies | 13 |
| Oil company acronym | 19 |
| Oil company machine | 19 |
| Oil company of old | 18 |
| Oil container | 13 |
| Oil container #1 | 16 |
| Oil container #2 | 16 |
| Oil container #3 | 16 |
| Oil container #4 | 16 |
| Oil containers | 14 |
| Oil conveyor | 12 |
| Oil country: Var. | 17 |
| Oil deposit problem | 19 |
| Oil drilling device | 19 |
| Oil encircler | 13 |
| Oil exporter | 12 |
| Oil exporters | 13 |
| Oil extractors | 14 |
| Oil facility | 12 |
| Oil family of TV | 16 |
| Oil field sight | 15 |
| Oil field sights | 16 |
| Oil field strike | 16 |
| Oil field workers | 17 |
| Oil filter brand | 16 |
| Oil from flax | 13 |
| Oil from petals | 15 |
| Oil giant of yore | 17 |
| Oil holder, maybe | 17 |
| Oil holder, perhaps | 19 |
| Oil in a can | 12 |
| Oil in old Rome | 15 |
| Oil industry honcho | 19 |
| Oil industry prefix | 19 |
| Oil industry tie? | 17 |
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