Most folks who talk about oil production know very little about it. One reality of oil production, particularly for older fields like those around Los Angeles, is that oil wells have to be frequently reworked to maintain such production (fracking, by the way, is one of those rework techniques and has been used for over 50 years). By banning well rework and re-injection of water (most fluid flowing from older wells is water), the city council has effectively banned oil production.
The linked article is a good reminder of a technique used by many environmental activists. Despite portraying themselves as being driven by science, they actually often make progress by taking words and both obscuring their meaning and adding emotional baggage to them. Such is the case with "fracking"
Because with its pun-friendly name, the term fracking has become an effective nonspecific rallying point for extreme activist groups aiming to scare the public about environmental harms that have yet to be demonstrated. Amid the cheering after the vote, some of the national activists behind the effort acknowledged the true goal behind measure. The term fracking, it seems, is actually intended to be a catch-all phrase to describe all aspects of oil and gas production, conventional and unconventional alike, according to Washington-based Food and Water Watch, one of the activist groups behind the measure. In an interview with online publication Streetsblog Los Angeles after the vote, FWW organizer Brenna Norton boldly stated as much when she acknowledged, “It’s easier to engage and organize people around ‘fracking’ than a complicated list of practices.”