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Attachment A <br />ATMOS ENERGY CORPORATfON <br />MID TEX DNISION <br />REVISION NO: 0 <br />RIDER: <br />WNA - WEATHER NORMALIZATION ADJUS7MENT <br />APPLICABLE TO: <br />All Cities designated as "Group A" on the Cities Served List <br />EFFECTNE DATE: <br />Bills Rendered on or after 08/0112009 <br />PAGE: 46 <br />WNAi = WNAFi x qq <br />Where qy is the relevant sales quantity for the jth customer in ith rate schedule. <br />Filings with Entities Exercising,Original Jurisdiction <br />As part of its annual RRM filing the Company will file (a) a copy of each computation of the Weather <br />Normalization Adjustment Factor, (b) a schedule showing the effective date of each such Weather <br />Normalization Adjustment, (c) a schedule showing the factors of values used in calculating such <br />Weather Normalization Adjustment and (d) a random sample and audit of thirty (30) actual customer <br />bills, with customer information deleted, for each rate schedule or classification to which the WNA was <br />applied in the preceding 12 month period. To the extent that source data is needed to audit the WNA <br />application, such data will be provided by the Company as part of the annual RRM filing. <br />If the RRM is discontinued, as provided in the Rider RRM tariff, the information required herein to be <br />filed with the entities exercising original jurisdiction shall be filed on March 1 of each year. <br />Base Use/Heat Use Factors <br />Residential Commercial <br />Base use Heat use Base use Heat use <br />1A1cf3+hor C1=+inn IUg-f Mrtf/H1117 MCf Mcf/HDD <br />Abilene <br />0.98 <br />.0140 <br />9.64 <br />.0629 <br />Austin <br />1.30 <br />.0161 <br />20.00 <br />.0815 <br />Dallas <br />1.60 <br />.0212 <br />20.12 <br />.1018 <br />Waco <br />1.12 <br />.0139 <br />11.69 <br />.0608 <br />Wichita <br />Falls <br />1.12 <br />.0159 <br />11.67 <br />.0649 <br />Sample WNAFj Calculation: <br />.3393 per Mcf = <br />Where <br />i = <br />Ri = <br />(.0140 <br />2.2707 x <br />(0.98 <br />Residential Single Block Rate Schedule <br />22707 per MCF <br />x (30-17) ) <br />+ (.0140 x 17) ) <br />HSFi = .0140 (Residential - Abilene Area) <br />Issued By: David J. Park Vice President, Rates and Regulatory Affairs <br />Date Issued: <br />w 4 --14O <br />