The OP omitted three vital bits of information:
How long did it take you to accumulate those 1,000 miles?
What is the make, model, and engine type that we are discussing?
What does the vehicle mfr specify as to the oil change interval–particularly the first oil change?
As Caddyman stated, there is no reason nowadays to do an oil change at 1k miles–unless the vehicle mfr specifies it. However, if it took you…let’s say…2 or 3 months of local driving to accumulate those miles, then perhaps it might be a good idea.
As was also stated, nowadays some engines come with special “break-in” oil in the crankcase, and in that case, it would be a very bad idea to do a 1k oil change. Hondas come with this special type of oil, but some other makes may also fall into this category.
Some mfrs do specify a shorter interval for the first oil change. For instance, my new Outback is supposed to have its first oil change at 3k miles, even though the “normal” interval is 7.5k miles. Of course, I did change the oil at 3k, and then reverted to my own normal interval of 4k to 5k miles.
Can you fill in the missing information for us, so that we can give you a really good response?