Oil wells present a danger to your cattle. The moving equipment presents an obvious danger to cattle that are just normally curious. But even the sludge pits that often contain oil and/or salt water can be dangerous if ingested by cattle.

 Melvin McGarraugh, Pueblo, Colo., says oil wells need to be fenced in any location where cattle are present. The most dangerous types of pump jacks, McGarraugh says, are those with electric motors that are set to run on a timer. Those wells may run two hours and then shut off for two hours. But the fact that the wells start suddenly is the most dangerous aspect for cows that may be too close at the time.