| 1980 |
Ronald Reagan defeats incumbent Jimmy Carter for President. |
| 1980 |
Charles J. Waidelich becomes Chief Executive Officer; Robert Sellers remains Chairman of Cities Service. |
| 1980 |
Cities Service reports record profits. |
| 1981 |
The United States introduces the first reusable spacecraft when it launches Columbia, the first in a series of space shuttles. |
| 1981 |
T Boone Pickens' Mesa Petroleum launches bid to take over Cities Service-a few months later, Canadian company Nu-West launches takeover attempt; merger attempt with Conoco falls through. |
| 1982 |
First artificial heart implanted. |
| 1982 |
Takeover battle with Mesa Petroleum continues; merger attempt with Gulf Oil Corporation fails. Occidental Petroleum purchases Cities Service. |
| 1982 |
MTV makes its first debut on cable television. |
| 1983 |
CITGO Petroleum Corporation created as standalone refining, marketing and transportation company registered in the state of Delaware; purchased by the Southland Company, operators of the 7-Eleven chain of convenience stores. |
| 1983 |
Sam Susser named President of CITGO Petroleum Corporation. |
| 1983 |
U.S. invades Grenada. |
| 1984 |
Desmond Tutu wins Nobel Peace Prize. |
| 1984 |
Lake Charles Refinery cuts runs to half its capacity due to poor company financial performance. |
| 1984 |
Stephen Spielberg produces Indiana Jones and the Temple of Doom. |
| 1985 |
Veteran oil man Ronald E. Hall joins CITGO as President and CEO; intensive business review concludes CITGO is worth saving. |
| 1985 |
First long term crude contracts signed with PetrĂ³leos de Venezuela, S.A. (PDVSA). |
| 1985 |
Pete Rose breaks Ty Cobb's career base hits record. |
| 1986 |
PetrĂ³leos de Venezuela, S.A. (PDVSA), the national oil company of Venezuela, buys 50 percent of CITGO from Southland. |
| 1986 |
First CITGO Presidents Meeting held with the theme: "Come on Along." |
| 1986 |
CITGO enters NASCAR racing with sponsorship of the Wood Brothers No. 21 car. |
| 1986 |
CITGO begins its long-term relationship with the Muscular Dystrophy Association (MDA), donating $750,000. |
| 1986 |
Space shuttle Challenger explodes, killing all aboard. |
| 1987 |
CITGO refineries receive more than half of their feedstocks from PDVSA. |
| 1987 |
CITGO more than doubles its marketing presence over 1985; wholesale branded gasoline sales increase more than 22 percent. |
| 1987 |
Chrysler launched the Chrysler New Yorker and Dodge Dynasty, so conservatively styled that Car and Driver Magazine described them as "flying bricks." |
| 1988 |
George Herbert Walker Bush defeats Michael Dukakis for the presidency. |
| 1988 |
CITGO's branded gasoline sales volumes increase 24 percent over 1988; CITGO branded outlets increase to nearly 7,700, a 22 percent increase over the previous year. |
| 1988 |
The employee volunteer community service group "Team CITGO" is formed at Lake Charles. |
| 1989 |
Berlin Wall falls. |
| 1989 |
Branded CITGO outlets increased to 8,463. |
| 1989 |
CITGO lubricants receive Ford's prestigious Q-1 Preferred Quality Award. |
| 1989 |
CITGO employees and Marketers raise a record $1.25 million for MDA |