| Date | Grid | Clue | Author |
| Mon Apr 8, 2024 | 52A | International grp. with many African members | Peter Gordon |
| Wed Feb 21, 2024 | 36D | International oil grp. | Jeffrey Martinovic |
| Tue Feb 6, 2024 | 65A | Grp. that Qatar left in 2019 | Victor Barocas |
| Sat Nov 25, 2023 | 52A | Qatar left it in 2019 | Jeff Stillman |
| Sun Oct 15, 2023 | 1D | Oil industry acronym | Jeff Chen and Juliana Tringali Golden |
| Fri Oct 6, 2023 | 51A | Noted example of oligopoly, in brief | Zhouqin Burnikel and Tom Pepper |
| Wed Sep 27, 2023 | 15A | Intl. price-setting group (2) | Scott Koenig |
| Mon Jul 17, 2023 | 32A | Grp. with many Mideast members (2) | Alexander Liebeskind |
| Sun Jun 11, 2023 | 57A | Grp. with barrels (2) | Sam Ezersky |
| Thu Jun 1, 2023 | 30A | Crude letters (3) | David and Karen and Paul Steinberg |
| Mon Apr 17, 2023 | 35D | Oil price-regulating grp. | Katherine Baicker and Scott Earl |
| Sun Feb 19, 2023 | 3D | International grp. headquartered in Vienna | Rebecca Goldstein |
| Sat Jan 28, 2023 | 36A | Org. that has more members in Africa than in the Mideast | Kevin Christian |
| Sat Aug 20, 2022 | 16A | Reserve group, in brief? | Hemant Mehta |
| Wed May 18, 2022 | 25D | Intl. group with members on three continents | Andy Kravis |
| Wed Jan 26, 2022 | 10A | Major oil acronym | Michael Schlossberg |
| Wed Dec 29, 2021 | 1D | International grp. founded in Baghdad in 1960 | Simon Marotte and Victor Fleming |
| Mon Nov 22, 2021 | 39D | Intl. group that has no members in Europe or North America | Stella Zawistowski |
| Wed Sep 22, 2021 | 18D | International grp. founded in 1960 in Baghdad | Grant Boroughs |
| Mon Jul 12, 2021 | 44D | International grp. with a 1970s U.S. embargo | Kevin Christian |
| Fri Jul 9, 2021 | 56A | International grp. that's well financed? | Robyn Weintraub |
| Tue Jun 8, 2021 | 6D | International grp. founded in Baghdad | Christopher Adams |
| Mon Dec 7, 2020 | 14A | Grp. that sets oil benchmarks | Barbara Lin |
| Tue Nov 17, 2020 | 26D | Big Mideast inits. | Kyle Dolan |
| Thu Sep 17, 2020 | 8D | Kuwait is a member of it, in brief | Simeon Seigel |
| Tue Apr 28, 2020 | 2D | Big oil cartel, in brief | Joel Fagliano |
| Sun Apr 19, 2020 | 48D | Europe-based grp. with no European members | Jack Mowat and Jeff Chen |
| Mon Mar 16, 2020 | 42D | Intl. group of oil producers | Gary Cee |
| Sun Jan 5, 2020 | 22A | Intl. group founded in 1960 with five members | Will Nediger |
| Mon Dec 9, 2019 | 15A | Grp. with many Mideast members (2) | Ellis Hay |
| Wed Dec 4, 2019 | 23D | Equatorial Guinea is its least populous member, for short | Evan Mahnken |
| Tue Oct 22, 2019 | 36D | Grp. headquartered in Austria, which isn't a member | Saul Pink |
| Mon Jul 22, 2019 | 67A | Oil producers' grp. | Lynn Lempel |
| Thu Nov 8, 2018 | 19A | Grp. that's well-financed? | Sam Ezersky |
| Sat Aug 25, 2018 | 24A | Equatorial Guinea joined it in 2017 | Sam Ezersky |
| Mon Jul 16, 2018 | 1D | Oil grp. (4) | Erik Agard |
| Wed May 23, 2018 | 15A | Grp. whose members have reserves | David Steinberg |
| Tue Jun 27, 2017 | 8D | Intl. group with two South American members and none in North America | John Guzzetta |
| Mon Jun 5, 2017 | 54A | Oil cartel (4) | Paul Coulter |
| Mon Jan 16, 2017 | 3D | Grp. that includes Iraq and Qatar | John Wrenholt |
| Wed Nov 23, 2016 | 54D | Crude letters? (3) | David Steinberg |
| Thu Nov 19, 2015 | 61A | Well-funded grp.? | Andrew Zhou |
| Sun Nov 8, 2015 | 85D | Intl. group headquartered in Vienna | Tracy Gray |
| Sun Apr 12, 2015 | 19D | Grp. that knows the drill? | Jeff Chen |
| Sat Jan 31, 2015 | 41D | Carlos the Jackal raided its HQ | Tim Croce |
| Thu Jun 19, 2014 | 1A | What group founded in 1960 currently has 12 members? | Timothy Polin |
| Wed Jun 11, 2014 | 64A | Intl. association since 1960 | Ian Livengood |
| Tue Apr 29, 2014 | 47A | Indonesia joined it in 1962 ... and left in 2008 | Jules P. Markey |
| Sun Apr 27, 2014 | 21A | Big acronym in energy | John Lampkin |
| Sun Oct 27, 2013 | 35D | Well-financed grp.? (2) | Brendan Emmett Quigley |
| Tue Jul 2, 2013 | 29A | Source of a 1973 crisis | Daniel Raymon |
| Wed Mar 13, 2013 | 60A | Grp. created at the Baghdad Conference, 1960 | Joe DiPietro |
| Sun Dec 2, 2012 | 3D | Grp. that has held summit meetings in Caracas and Riyadh | Steven E. Atwood |
| Fri Nov 23, 2012 | 38A | Grp. that may call on its reserves? | Patrick Berry |
| Fri Aug 31, 2012 | 38A | Ecuador is a member of it | Patrick Berry |
| Mon Aug 13, 2012 | 41D | Oil cartel (4) | Gareth Bain |
| Wed Aug 1, 2012 | 26D | Crude acronym | Doug Peterson |
| Sun Jun 10, 2012 | 96D | Grp. that includes Ecuador and Venezuela | Xan Vongsathorn |
| Mon Apr 30, 2012 | 53D | Crude group? (5) | Susan L. Stanislawski |
| Mon Jan 9, 2012 | 14A | Oil ministers' grp. | Michael Dewey |
| Sun Oct 23, 2011 | 83D | 118-Across is in it | Joe DiPietro |
| Sun Jun 5, 2011 | 18D | Ecuador and Venezuela are in it (2) | Yaakov Bendavid |
| Tue Apr 19, 2011 | 63A | Cartel formed in '60 | Randall J. Hartman |
| Mon Apr 11, 2011 | 52D | Intl. oil group (2) | Ian Livengood |
| Wed Mar 16, 2011 | 41D | Cartel acronym | Alan Arbesfeld |
| Sat Oct 9, 2010 | 49D | Grp. that rolls out the barrels? | Joe Krozel |
| Fri Aug 27, 2010 | 47A | Vienna-based grp. with no European members | Corey Rubin |
| Mon Jul 26, 2010 | 32D | Source of some of the oil for 31-Down | Janet R. Bender |
| Sun Mar 21, 2010 | 117D | Its HQ are in Austria, which isn't a member | Adam Fromm |
| Wed Feb 24, 2010 | 63A | Grp. including Nigeria and Venezuela | Kenneth J. Berniker |
| Mon Jan 18, 2010 | 2D | Org. with many Mideast members | Adam Cohen |
| Sun Jan 3, 2010 | 5A | Well-running group?: Abbr. | Jeremy Newton |
| Wed Dec 30, 2009 | 63A | Cartel led by a secretary general | Adam Cohen |
| Fri May 1, 2009 | 32A | Venezuela is in it | Joon Pahk |
| Sun Feb 1, 2009 | 72D | The U.A.E. is in it | Victor Fleming and Matt Ginsberg |
| Thu Jan 29, 2009 | 46D | Crude letters? (3) | Barry C. Silk |
| Mon Jan 12, 2009 | 43D | Grp. with clout at the gas pump | Lynn Lempel |
| Mon Dec 22, 2008 | 39D | Grp. in which many of the leaders wear robes | Lynn Lempel |
| Wed Nov 26, 2008 | 9D | Intl. price-setting group (2) | Harvey Estes |
| Sun May 25, 2008 | 37A | Ecuador and Venezuela are in it (2) | Elizabeth C. Gorski |
| Sun Jun 10, 2007 | 30D | Barrel org. | Bob Klahn |
| Thu Jan 18, 2007 | 31D | Crude group (5) | Randolph Ross |
| Sun May 14, 2006 | 70D | Group that includes the U.A.E. | Patrick Berry |
| Wed Mar 29, 2006 | 35D | Grp. that has the world over a barrel? | Frances Hansen (1919-2004) |
| Wed Mar 1, 2006 | 3D | Fuel grp. | Richard Silvestri |
| Sun Dec 4, 2005 | 128A | Acronym since 1960 (2) | Eric Berlin and Craig Kasper |
| Wed Oct 26, 2005 | 10D | Crude group? (5) | Adam G. Perl |
| Tue Aug 30, 2005 | 7D | Oil price-setting grp. | Leonard Williams |
| Thu Mar 24, 2005 | 13D | Grp. founded in Baghdad, 1960 | Dan Reichert |
| Sun Mar 20, 2005 | 45D | Grp. that includes Nigeria | Patrick Berry |
| Sun Feb 13, 2005 | 79A | Trading grp. | Daniel C. Bryant |
| Wed Aug 4, 2004 | 18A | Crude org. | Raymond Hamel |
| Mon May 3, 2004 | 42A | Intl. oil group (2) | Gregory E. Paul |
| Tue Mar 30, 2004 | 32D | Oil grp. (4) | Sarah Keller |
| Wed Oct 22, 2003 | 28A | Vienna-based cartel | Judy Cole |
| Sat Aug 30, 2003 | 23D | Price-setting grp. | Patrick Berry |
| Wed Aug 20, 2003 | 51D | Grp. with barrels (2) | Mel Taub |
| Wed Jul 30, 2003 | 16A | Iran is a mem. of it | Alan J. Weiss |
| Mon Jun 3, 2002 | 1D | Letters from the Persian Gulf? | Gregory E. Paul |
| Thu May 23, 2002 | 17A | *Mideast ... pipeline ... embargo | John Underwood |
| Mon Feb 18, 2002 | 13D | Oil cartel (4) | Philip Lew |
| Mon Jan 28, 2002 | 2D | Oil grp. (4) | Sarah Keller |
| Mon Nov 26, 2001 | 12D | Assn. with many Gulf members | Bette Sue Cohen |
| Sun Oct 14, 2001 | 82D | Syndicate since 1960 | Elizabeth C. Gorski |
| Sat Sep 15, 2001 | 9D | Iraq is in it | Michael Shteyman |
| Thu Aug 30, 2001 | 35D | Kind of minister | Cathy Millhauser |
| Thu Aug 2, 2001 | 14A | Grp. with crude interests? | Bruce F. Adams |
| Mon Mar 26, 2001 | 38A | Oil grp. (4) | Gregory E. Paul |
| Wed Mar 14, 2001 | 62A | Crude bunch? | Greg Staples |
| Mon Jan 22, 2001 | 6D | Grp. that has energy users over a barrel? | Nancy Kavanaugh |
| Mon Jan 1, 2001 | 58A | Crude group? (5) | Manny Nosowsky |
| Mon Sep 11, 2000 | 15A | Mideast-based grp. | Gregory E. Paul |
| Sat Aug 19, 2000 | 41A | Indonesia is in it | Charles E. Gersch |
| Mon May 1, 2000 | 3D | It controls a lot of U.S. imports | Gregory E. Paul |
| Tue Feb 8, 2000 | 4D | Crude cartel | Fred Piscop |
| Mon Mar 1, 1999 | 11D | Oil cartel (4) | Ed Early |
| Tue Oct 6, 1998 | 56D | Intl. acronym since 1960 | Elizabeth C. Gorski |
| Sun Nov 16, 1997 | 33D | The U.A.E. belongs to it | Frank Longo |
| Tue Oct 28, 1997 | 65A | Grp. affecting gas prices | Bernice Gordon |
| Thu Jun 19, 1997 | 6D | Trade grp. since 9/14/60 | Patrick Jordan |
| Thu Feb 20, 1997 | 6D | Noted cartel | D. J. Kahn |
| Thu Dec 19, 1996 | 8D | Group incl. the U.A.E. | C. Millhauser |
| Thu Jul 4, 1996 | 41A | Meeting of ministers association | Joy L. Wouk |
| Thu Jun 6, 1996 | 1D | Gas shortage manipulators | A. J. Santora |
| Sat May 4, 1996 | 22A | Grp. making barrels of money? | B. Klahn |
| Thu Oct 19, 1995 | 13D | Notorious price controllers | Lois Sidway |
| Thu Oct 12, 1995 | 1A | Cartel since 1960 | Christopher Hurt |
| Sun Oct 8, 1995 | 61D | Unpopular org. in the '70s | Nancy Nicholson Joline |
| Sun Aug 6, 1995 | 101D | Crude group? (5) | Manny Nosowsky |
| Fri Jun 30, 1995 | 34D | Org. since 1960 | Rich Norris |
| Thu Apr 6, 1995 | 25D | Fuel price setter, for short | Lois Sidway |
| Sun Dec 18, 1994 | 118D | "Well"-financed grp. (2) | Manny Nosowsky & Bob Klahn |
| Thu May 5, 1994 | 35A | Well-oiled grp. | Mel Taub |
| Thu Apr 14, 1994 | 6A | Acronym since 1960 (2) | Manny Nosowsky |
| Sun Jan 16, 1994 | 85A | Acronym in 70's news | Ernst Theimer |
| Wed Dec 15, 1993 | 23A | Grp. founded in 1960 | Fred Piscop |