<?xml version="1.0"?>
<notificationOfRemoval>

    <schemaVersion>X0203</schemaVersion>

    <exchange>
        <cik>0000876661</cik>
        <entityName>NEW YORK STOCK EXCHANGE LLC</entityName>
    </exchange>

    <issuer>
        <cik>899723</cik>
        <entityName>OM GROUP INC</entityName>
        <fileNumber>001-12515</fileNumber>
        <address>
            <street1>950 Main Avenue</street1>
            <street2>Suite 1300</street2>
            <city>Cleveland</city>
            <stateOrCountryCode>OH</stateOrCountryCode>
            <stateOrCountry>OHIO</stateOrCountry>
            <zipCode>44114</zipCode>
        </address>
        <telephoneNumber>(216) 781-0083</telephoneNumber>
    </issuer>

    <descriptionClassSecurity>Common Stock</descriptionClassSecurity>

    <ruleProvision>17 CFR 240.12d2-2(a)(3)</ruleProvision>

    <signatureData>
        <signatureName>Benjamin Sawyer</signatureName>
        <signatureTitle>Manager</signatureTitle>
        <signatureDate>2015-10-28</signatureDate>
    </signatureData>
</notificationOfRemoval>
