Annual Report to Shareholders
Humble Oil & Refining
| Alabama | 1921-1956, 1958 |
| Columbia | 1912-1950 |
| Harvard | 1933, 38, 1921-49 BOUND,50-58. |
| Purdue | 1921-1957, 1958. |
| MIT | 1939, 1940, 1941, 1942, 1943, 1944, 1945, 1946, 1947, 1948, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1957, 1958 |
| NYPL | 1943 |
| Yale | 1921-9158 |
