158 Field Regiment RA was formed in January 1941 with two batteries. A third battery was formed in 1941. It re-organised as 158 Jungle Field Regiment in September 1943 and reverted to a Field role in July 1944. 158 Field Regiment RA was disbanded in February 1946.
Illustrations of the formation badges under which a unit served or supported are given. This is no guarantee that the unit used this formations badge.
| Jan 41 | Formed | Nowshera, India | |
| Jan 41 | Nowshera Area | India | |
| Mar 42 | Ranchi Area | India | |
| May 42 |  |
23 Indian Infantry Division | Manipur Road, Burma (Myanmar) |
| Sep 43 | Became Jungle Field Regiment | ||
| Feb 44 | |
1 Indian Infantry Brigade, 23 Indian Division | Kabaw Valley, Burma (Myanmar) |
| Apr 44 | |
37 Indian Infantry Brigade, 23 Indian Division | Burma (Myanmar) |
| Jul 44 | Reverted to Field Regiment | ||
| Nov 44 | |
23 Indian Infantry Division | Bombay, India |
| Jul 45 |  |
36 Infantry Division | Poona, India |
Batteries
| Jan 41 | A, B |
| 1941 | A, B, C |
| Aug 42 | P, Q, R |
| Mar 43 | 581, 582, 583 |
Equipment
| Jan 41 | 18 x 3.7 inch Howiters & 8 x 18 pdr |
| Nov 41 | 25 pdr |