| Venezuela is in it | 18 |
| Unpopular org. in the '70s | 30 |
| UAE et al. | 10 |
| Twelve-member cartel | 20 |
| Trading grp. | 12 |
| Trade syndicate since 1961 | 26 |
| Trade grp. since 9/14/60 | 24 |
| This group feels fuelish | 24 |
| They've had us over a bbl. | 30 |
| They roll out the barrels | 25 |
| Their 2008 meeting was last week in Algeria | 43 |
| The UAE is a member of it | 25 |
| The UAE has been a member of it since 1967 | 42 |
| The U.A.E. is in it | 19 |
| Syndicate since 1960 | 20 |
| Source of a 1973 crisis | 23 |
| Sometimes-unpopular org. | 24 |
| Slick cartel? | 13 |
| Saudi Arabia is a member of it: Abbr. | 37 |
| Quota-setting org. | 18 |
| Qatar joined it in 1961 | 23 |
| Qatar and the UAE are in it | 27 |
| Price-setting grp. | 18 |
| Powerful energy grp. | 20 |
| Powerful energy cartel (abbr.) | 30 |
| Powerful energy cartel | 22 |
| Powerful cartel | 15 |
| Powerful bloc | 13 |
| Petroleum-regulating gp. | 24 |
| Petroleum-cartel inits. | 23 |
| Petroleum producers org. | 24 |
| Petroleum cartel | 16 |
| Petro group | 11 |
| Org. with ministers | 19 |
| Org. with many Mideast members | 30 |
| Org. with lots of energy | 24 |
| Org. that's well-funded? | 28 |
| Org. that rolls out the barrels | 31 |
| Org. that creates output ceilings | 33 |
| Org. that Angola joined in 2007 | 31 |
| Org. of which Venezuela is a member | 35 |
| Org. joined by Angola and Ecuador in 2007 | 41 |
| Org. Indonesia left in 2008 | 27 |
| Org. in Africa, S.A. and Asia | 29 |
| Org. founded at Baghdad | 23 |
| Org. for Kuwait etc. | 20 |
| Org. for Iraq | 13 |
| Org. created in Baghdad in 1960 | 31 |
| Oily org.? | 10 |
| Oily bunch? | 11 |
| Oil-rich gp. | 12 |
| Oil-rich cartel | 15 |
| Oil-producing org. | 18 |
| Oil-producers' gp. | 22 |
| Oil-exporting gp. | 17 |
| Oil producer's grp. | 23 |
| Oil pricing grp. | 16 |
| Oil price-setting grp. | 22 |
| Oil price setter | 16 |
| Oil nations' grp. | 21 |
| Oil nations' gp. | 20 |
| Oil moguls' org. | 20 |
| Oil ministers' grp. | 23 |
| Oil letters | 11 |
| Oil giant with HQ in Vienna | 27 |
| Oil cartel's letters | 24 |
| Oil cartel's inits. | 23 |
| Oil cartel's initials | 25 |
| Oil cartel based in Vienna | 26 |
| Oil cartel for short | 21 |
| Oil cartel briefly | 19 |
| Oil bloc | 8 |
| NYSE influence since 1960 | 25 |
| Notorious price controllers | 27 |
| Noted cartel | 12 |
| Nigeria is its most populous member | 35 |
| Mostly Mideastern cartel | 24 |
| Mideast-based grp. | 18 |
| Mideast oil-producing group | 27 |
| Mideast oil org. | 16 |
| Mideast cartel: abbr. | 21 |
| Mideast cartel for short | 25 |
| Mideast cartel | 14 |
| Mideast alliance: abbr. | 23 |
| Mideast ... pipeline ... embargo | 32 |
| Major 70's acronym | 22 |
| Libya and Qatar's oil org. | 30 |
| Letters of a noted cartel | 25 |
| Letters from the Persian Gulf? | 30 |
| Kuwait, Qatar, etc. | 19 |
| Its products are refined | 24 |
| Its HQ are in Austria, which isn't a member | 47 |
| It's made up of 12 countries: Abbr. | 39 |
| It has us over a barrel | 23 |
| It deals in bbls. | 17 |
| It controls a lot of U.S. imports | 33 |
| Iran, Iraq and nine others | 26 |
| Iran is a mem. of it | 20 |
| Intl. price-setting group | 25 |
| Intl. fuel cartel | 17 |