company_view.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
    Copyright (C) 2014-2015 Akretion (http://www.akretion.com/)
    @author: Alexis de Lattre <alexis.delattre@akretion.com>
    The licence is in the file __openerp__.py
-->

<openerp>
<data>

<record id="res_company_form_l10n_fr" model="ir.ui.view">
    <field name="name">l10n_fr_siret.res.company.form</field>
    <field name="model">res.company</field>
    <field name="inherit_id" ref="l10n_fr.res_company_form_l10n_fr" />
    <field name="arch" type="xml">
        <field name="siret" position="before">
            <field name="siren"/>
            <field name="nic"/>
        </field>
    </field>
</record>

</data>
</openerp>