Elm Coulee Oil Field
...that Elm Coulee Oil Field, Montana, is the highest-producing onshore field found in the Continental United States in the past 56 years?
...that <b id="mwEu0"><a href="./Elm_Coulee_Oil_Field" id="mwEu4" rel="mw:WikiLink" title="Elm Coulee Oil Field">Elm Coulee Oil Field</a></b>, <a href="./Montana" id="mwEu8" rel="mw:WikiLink" title="Montana">Montana</a>, is the highest-producing onshore field found in the <a class="mw-redirect" href="./Continental_United_States" id="mwEvA" rel="mw:WikiLink" title="Continental United States">Continental United States</a> in the past 56 years?