If you smell a natural gas odor, hear the hissing sound of gas escaping, or see other signs of a leak: IMMEDIATELY EVACUATE and call 911 or National Fuel at1-800-444-3130


There are several indicators of natural gas leaks:

  • Smell: Recognizing the odor – which is similar to rotten eggs.

  • Sight: Seeing a white cloud, mist, fog, and bubbles in standing water or blowing dust.

  • Sound: Hearing an unusual noise like roaring, hissing, or whistling.

  • If You Suspect a Leak 

  • If you think you smell, see or hear a leak:

    • Turn off and abandon any motorized equipment and move to a safe location,

    • Immediately leave the area in an upwind direction.

    • Call National Fuel’s 24/7 emergency response number: 1-800-444-3130.

    • NOTE: If you believe that an elevated response is required due to the scope or size of the incident, call 911 and relay this information when you notify National Fuel.

    • Warn others and form a safe perimeter. Evacuate surrounding structures as needed.

    • Avoid creating sparks or sources of heat which could cause gas to ignite and burn. Do not light a match, start an engine, use a phone or light flares.

    • Avoid driving into the suspected leak area.

    • Avoid direct contact with escaping gas because physical injury can occur.