| 1950 |
Senator Joseph McCarthy begins his hearings as Chair of the Senate Subcommittee on Un-American Activities. |
| 1951 |
A crude topping unit at Lake Charles Refinery has a record run of 875 consecutive days and "B" Cat establishes a record 1,058-day run. |
| 1951 |
The Universal Automatic Computer, or Univac-the first computer designed for commercial purposes-is completed. |
| 1952 |
Yankees defeat the Dodgers in the "Subway" World Series. |
| 1952 |
Cities Service begins exploration in the Middle East in Muscat and Oman. |
| 1952 |
Dwight D. Eisenhower defeats Adlai Stephenson in the presidential election. |
| 1953 |
Sir Edmund Hillary and Tenzing Norgay climb to the summit of Mount Everest, the world's tallest mountain. |
| 1953 |
Cities Service joint venture discovers oil in the Gulf of Mexico. |
| 1954 |
In a unanimous decision written by Chief Justice Earl Warren, the Supreme Court of the United States rules that racially segregated schools are unconstitutional. |
| 1954 |
Cities Service acquires exclusive rights to operate service stations on the New Jersey Turnpike. |
| 1955 |
Disneyland opens in California. |
| 1956 |
Rock and roll comes of age with Bill Haley and the Comets' "Rock Around the Clock." |
| 1957 |
The computer language "FORTRAN" developed. |
| 1957 |
Cities Service begins aggressive credit card marketing and makes first delivery of jet fuel to the U.S. Air Force. |
| 1958 |
Louisiana State University wins the National Football Championship. |
| 1958 |
Cities Service begins building "super" service stations-each averaging about 800,000 gallons of gasoline a year. |
| 1959 |
The Soviet Union launches Luna 2, the first space probe to reach the moon. |
| 1959 |
Cities Service subsidiary Arkansas Fuel operates 1,159 oil wells and in Louisiana drills its deepest well-15,120 feet. |
| 1959 |
J. Ed Warren named President of Cities Service. |
