| 1 | MPCX | Michels Corp. | 7/2005; eliminated 7/2008 | | NAKINA |
| 2 | MPCX | Michaels Corp. | added 4/2003 | | NAKINA |
| 3 | MPCX | Michaels Pipeline Construction, Inc. | added 4/1991; 1/1994-7/2000; eliminated 4/2003 | | NAKINA |
| 4 | MPCX | Moyer Packing Co. | added 10/1981; eliminated 1/1987 | | NAKINA |
| 5 | MPCX | Mobil Oil Co., a Division of Socony Mobil Oil Co., Inc. | eliminated 10/1962 | | NAKINA |
| 6 | MPCX | Socony Mobil Oil Co., Inc. | 4/1961 | | NAKINA |
| 7 | MPCX | Mobil Oil Co., a Division of Socony Mobil Oil Co., Ltd. | added 1/1960 | | NAKINA |
| 8 | MPCX | Magnolia Petroleum Co. | 8/1920-10/1957; eliminated 1/1960 | | NAKINA |
| 9 | MPCX | Magnolia Petroleum Co. | 4/38-10/57; eliminated 1/60 | | NRHS |
| 10 | MPCX | Mobil Oil Co., a Division of Socony Mobil Oil Co., Ltd. | added 1/60 | | NRHS |
| 11 | MPCX | Socony Mobil Oil Co., Inc. | Apr-61 | | NRHS |
| 12 | MPCX | Moyer Packing Co. | added 10/81; eliminated 1/87 | | NRHS |
| 13 | MPCX | Michels Pipeline Construction, Inc. | added 4/91; 1/94-7/2000 | | NRHS |
| 14 | MPCX | *SOCONY MOBIL OIL CO. [MAGNOLIA PETROLEUM CO.] | | | PWRC |
| 15 | MPCX | *MOYER PACKING CO. | | | PWRC |
| 16 | MPCX | Moyer Packing (Michels Pipeline Construction) | | | RSRV |
| 17 | MPCX | MICHELS CORPORATION | | | SCAC4 |