SNMP: OID to use when writing custom MIBs

Question

If you are writing your own MIB for a bespoke application, is there a 'best practice' for which branch you should use. I'm thinking of something analogous to private IP addresses, that can be used within enterprises, without conflicting with Registered IP addresses

I have been asked to make a suggestion, as I advised Application Developers that they should not use OIDs under .1.3.6.1.4.1.111 - This is the Oracle branch

Answer 1

I have found that our company has a branch under 1.3.6.1.4.1, which is listed on the IANA website - http://www.iana.org/assignments/enterprise-numbers

I have advised the application developers that they should contact the person listed with the enterprise number and request to be assigned a leaf node

I'm not sure if whether this approach is what could be considered 'standard' or 'best practice'. I've not found any useful documentation on the subject so far...