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

    <schemaVersion>X0203</schemaVersion>

    <exchange>
        <cik>0001143313</cik>
        <entityName>AMERICAN STOCK EXCHANGE LLC</entityName>
    </exchange>

    <issuer>
        <cik>0001200525</cik>
        <entityName>NORTHERN ORION RESOURCES INC</entityName>
        <fileNumber>001-31927</fileNumber>
        <address>
            <street1>1075 West Georgia Street</street1>
            <street2>Suite 250</street2>
            <city>Vancouver</city>
            <stateOrCountryCode>A1</stateOrCountryCode>
            <stateOrCountry>BRITISH COLUMBIA, CANADA</stateOrCountry>
            <zipCode>V6E 3C9</zipCode>
        </address>
        <telephoneNumber>(604) 689 - 9663</telephoneNumber>
    </issuer>

    <descriptionClassSecurity>Common Shares, Without Par Value</descriptionClassSecurity>

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

    <signatureData>
        <signatureName>Kerri L. Ramirez</signatureName>
        <signatureTitle>Manager, Corporate Actions and Proxy Rulings</signatureTitle>
        <signatureDate>2007-10-16</signatureDate>
    </signatureData>
</notificationOfRemoval>
