EL PASO NATURAL GAS CO 10-K

FORM 10-K

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ERNST & YOUNG LLP.

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO SECTION 302

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 302

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT TO SECTION 906

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 906

XBRL INSTANCE DOCUMENT

XBRL TAXONOMY EXTENSION SCHEMA

XBRL TAXONOMY EXTENSION CALCULATION LINKBASE

XBRL TAXONOMY EXTENSION DEFINITION LINKBASE

XBRL TAXONOMY EXTENSION LABEL LINKBASE

XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT

IDEA: XBRL DOCUMENT