The text of the committee substitute prevents pubic and private employers from preventing an employee who is licensed from keep a firearm and/or ammunition in a locked car on the company's property.  It includes several exceptions; school districts, vehicles owned or leased by the employer, open enrollment charter schools, private schools and
(E)  property owned or controlled by a person,
  	other than the employer, that is subject to a valid, unexpired oil,
  	gas, or other mineral lease executed before September 1, 2011, that
  	contains a provision prohibiting the possession of firearms on the
  	property; or
  	                   (F)  property owned or leased by a chemical
  	manufacturer or oil and gas refiner with an air authorization under
  	Chapter 382, Health and Safety Code, and on which the primary
  	business conducted is the manufacture, use, storage, or
  	transportation of hazardous, combustible, or explosive materials,
  	except in regard to an employee who holds a license to carry a
  	concealed handgun under Subchapter H, Chapter 411, Government Code,
  	and who stores the handgun in a locked, privately owned motor
  	vehicle in a parking lot, parking garage, or other parking area the
  	employer provides for employees that is outside of a secured and
  	restricted area:
  	                         (i)  that contains the physical plant;
  	                         (ii)  that is not open to the public; and
  	                         (iii)  the ingress into which is constantly
  	monitored by security personnel.