Jurassic Shark 2: Aquapocalypse (2021) on Netflix

Plot summary

A prehistoric Megalodon has returned to the surface and terrorizes oil rig workers and the members of a nearby fishing village. Doomed to repeat past mistakes, the unscrupulous Boswell Corporation intends to tap a rich oil pocket off that coast. The predator is territorial and hungry for human flesh, and it has kept patrolling the cove since the bloody events of an earlier time. The creature is sixty feet long, and it prowls the shores, drawing unwanted attention, so no one along that coast is safe. The rig workers who come out to the water do not suspect what waits there.