if ever you need ino on any parish then you can consult a copy of the Following in your local reference library
http://www.genealogysupplies.com/index.htm?product _display.php?prodid=1708.ref
(THAT IS THE PHILLIMORES ATLAS AND INDEX OF Parish registers
It is the bible for local parish register research. It also includes any IGI listings.
There is an Oldham Branch of the manchester and lancashire family history society
http://www.mlfhs.org.uk/Oldham/mlfhsoldham.html
and they have carried out a survey of the memorial inscriptions for st peters oldham 1768 to 1876.
manchester City Library holds the following:
Oldham- St Peter
Baptisms-1768-1802- MFPR 137 or MFPR 2199
Baptisms-1803-1812- MFPR 2199
Baptisms-1813-1818- MFPR 137 or MFPR 2199
Baptisms-1818-1838- MFPR 137
Baptisms-1838-1857- MFPR 1693
Baptisms-1857-1886- MFPR 1694
Baptisms-1886-1906- MFPR 1695
Baptisms-1906-1930- MFPR 1695 or MFPR 2073
Baptisms-1930-1961- MFPR 1695
Baptisms Tr.-1803-1812- FF929.342739 OL1
Burials-1768-1853- MFPR 137
Burials-1853-1876- MFPR 1695
Marriages-1836-1883- MFPR 1696
Marriages-1883-1915- MFPR 1697
Marriages-1915-1924- MFPR 1697 or MFPR 2073
Marriages-1924-1948- MFPR 1698 or MFPR 2073
Marriages-1948-1961- MFPR 1698
These are on film i think.
oLDHAM lOCAL sTUDIES LIBRARY ALSO HOLDS COPIES OF THE REGISERS:
http://www.oldham.gov.uk/community/local_studies/parish-registers.htm