| 1 | SMPX | Smiley Petroleum Co., Inc. | 8/1920 | | NAKINA |
| 2 | SMPX | Shell-Mex Oil Co. of Cuba, Ltd. | 7/1937-4/1947 | | NAKINA |
| 3 | SMPX | Commercial Metals Co. | added 1/1997; added 4/1997; 7/2000-7/2005 | | NAKINA |
| 4 | SMPX | Shell-Mex Oil Co. of Cuba, Ltd. (Cia Petrolera Shell--Mex de Cuba, S.A.) | Apr-38 | | NRHS |
| 5 | SMPX | Commercial Metals Co. | added 1/97; added 4/97; 7/2000 | | NRHS |
| 6 | SMPX | *SMILEY PETROLEUM CO., INC. | | | PWRC |
| 7 | SMPX | *SHELL-MEX OIL CO. OF CUBA, LTD. | | | PWRC |
| 8 | SMPX | *STONE MOUNTAIN PARK | | | PWRC |
| 9 | SMPX | +COMMERCIAL METALS COMPANY | | | PWRC |
| 10 | SMPX | Commercial Metals | | | RSRV |
| 11 | SMPX | COMMERC | | | SCAC4 |
