# EXCLUSION (Contamination or Pollution)

It is agreed that the insurance does not apply to bodily injury or property damage arising out of the discharge, dispersal, release or escape of smoke, vapors, soot, fumes, acids, alkalis, toxic chemicals, liquids or gases, waste materials or other irritants, contaminants or pollutants into or upon land, the atmosphere or any watercourse or body of water; but this exclusion does not apply if such discharge, dispersal, release or escape is sudden and accidental.

It is further agreed that, if with respect to operations described in this endorsement there is a discharge, dispersal, release or escape of oil or other petroleum substance or derivative (including any oil refuse or oil mixed with wastes) into or upon any watercourse or body of water, the insurance does not apply to bodily injury or property damage arising out of such discharge, dispersal, release or escape whether or not sudden and accidental.

## Description of Operations

- Gas Lease Operators — natural gas
- Gasoline Recovery — from casing head or natural gas
- Non-operating working interests
- Oil or Gas Well Shooting
- Oil or Gas Wells — acidizing
- Oil or Gas Wells — cementing
- Oil or Gas Wells — cleaning or swabbing — by contractors
- Oil or Gas Wells — drilling or redrilling, installation or recovery of casing
- Oil or Gas Wells — instrument logging or survey work in wells
- Oil or Gas Wells — perforating of casing
- Oil Lease Operators
- Oil Pipe Lines — operation, including maintenance
- Oil Rig or Derrick Erecting or Dismantling — wood or metal — including construction of foundations or structures or installation of equipment

## Special State Exception: Paragraph two of this endorsement does not apply to bodily injury or property damage taking place within Tennessee or West Virginia.

This endorsement, which forms a part of and is for attachment to the following described policy issued by the company designated therein, takes effect on the effective date of said policy, unless another effective date is shown below, at the hour stated in said policy and expires concurrently with said policy.

| Must Be Completed |
| --- |
| ENDT. NO. 11 |

| Complete Only When This Endorsement Is Not Prepared with the Policy Or Is Not to be Effective with the Policy |
| --- |
| POLICY NO. ISSUED TO EFFECTIVE DATE OF THIS ENDORSEMENT |

**CNA**

Form G-40345-B