<xs:simpleType name="VolumeUom">
  <xs:restriction base="eml:UomEnum">
    <xs:enumeration value="1000 bbl">
      <xs:annotation>
        <xs:documentation>thousand barrel</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1000 ft3">
      <xs:annotation>
        <xs:documentation>thousand cubic foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1000 gal[UK]">
      <xs:annotation>
        <xs:documentation>thousand UK gallon</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1000 gal[US]">
      <xs:annotation>
        <xs:documentation>thousand US gallon</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1000 m3">
      <xs:annotation>
        <xs:documentation>thousand cubic metre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1E-6 gal[US]">
      <xs:annotation>
        <xs:documentation>millionth of US gallon</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1E12 ft3">
      <xs:annotation>
        <xs:documentation>million million cubic foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1E6 bbl">
      <xs:annotation>
        <xs:documentation>million barrel</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1E6 ft3">
      <xs:annotation>
        <xs:documentation>million cubic foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1E6 m3">
      <xs:annotation>
        <xs:documentation>million cubic metre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1E9 bbl">
      <xs:annotation>
        <xs:documentation>thousand million barrel</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="1E9 ft3">
      <xs:annotation>
        <xs:documentation>thousand million cubic foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="acre.ft">
      <xs:annotation>
        <xs:documentation>acre foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="bbl">
      <xs:annotation>
        <xs:documentation>barrel</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="cm3">
      <xs:annotation>
        <xs:documentation>cubic centimetre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="dm3">
      <xs:annotation>
        <xs:documentation>cubic decimetre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="floz[UK]">
      <xs:annotation>
        <xs:documentation>UK fluid-ounce</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="floz[US]">
      <xs:annotation>
        <xs:documentation>US fluid-ounce</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ft3">
      <xs:annotation>
        <xs:documentation>cubic foot</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="gal[UK]">
      <xs:annotation>
        <xs:documentation>UK gallon</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="gal[US]">
      <xs:annotation>
        <xs:documentation>US gallon</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="ha.m">
      <xs:annotation>
        <xs:documentation>hectare metre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="hL">
      <xs:annotation>
        <xs:documentation>hectolitre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="in3">
      <xs:annotation>
        <xs:documentation>cubic inch</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="km3">
      <xs:annotation>
        <xs:documentation>cubic kilometre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="L">
      <xs:annotation>
        <xs:documentation>litre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="m3">
      <xs:annotation>
        <xs:documentation>cubic metre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="mi3">
      <xs:annotation>
        <xs:documentation>cubic mile</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="mL">
      <xs:annotation>
        <xs:documentation>millilitre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="mm3">
      <xs:annotation>
        <xs:documentation>cubic millimetre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="pt[UK]">
      <xs:annotation>
        <xs:documentation>UK pint</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="pt[US]">
      <xs:annotation>
        <xs:documentation>US pint</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="qt[UK]">
      <xs:annotation>
        <xs:documentation>UK quart</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="qt[US]">
      <xs:annotation>
        <xs:documentation>US quart</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="um2.m">
      <xs:annotation>
        <xs:documentation>square micrometre metre</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
    <xs:enumeration value="yd3">
      <xs:annotation>
        <xs:documentation>cubic yard</xs:documentation>
      </xs:annotation>
    </xs:enumeration>
  </xs:restriction>
</xs:simpleType>