The first 14 volumes of "The Oxyrhynchus papyri" are online on archive.org:

(vol. 12 and 14 do not contain Christian papyri)

1 

http://ia301507.us.archive.org/3/items/oxyrhynchuspapy05huntgoog/oxyrhynchuspapy05huntgoog.pdf

2

http://ia331435.us.archive.org/2/items/oxyrhynchuspapy03huntgoog/oxyrhynchuspapy03huntgoog.pdf

3

http://ia350620.us.archive.org/2/items/oxyrhynchuspapy00huntgoog/oxyrhynchuspapy00huntgoog.pdf

4

http://ia361300.us.archive.org/5/items/oxyrhynchuspapy02huntgoog/oxyrhynchuspapy02huntgoog.pdf

5

http://ia311208.us.archive.org/3/items/oxyrhynchuspapy00socigoog/oxyrhynchuspapy00socigoog.pdf

6

http://ia360703.us.archive.org/15/items/oxyrhynchuspapyr06gren/oxyrhynchuspapyr06gren.pdf

7

http://www.archive.org/download/oxyrhynchuspapyr07gren/oxyrhynchuspapyr07gren.pdf

8

http://www.archive.org/download/oxyrhynchuspapyr08gren/oxyrhynchuspapyr08gren.pdf

9

http://www.archive.org/download/oxyrhynchuspapyr09gren/oxyrhynchuspapyr09gren.pdf

10

http://www.archive.org/download/oxyrhynchuspapyr10gren/oxyrhynchuspapyr10gren.pdf

11

http://www.archive.org/download/oxyrhynchuspapyr11gren/oxyrhynchuspapyr11gren.pdf

12

http://www.archive.org/download/oxyrhynchuspapyr12gren/oxyrhynchuspapyr12gren.pdf

13

http://www.archive.org/download/oxyrhynchuspapyr13gren/oxyrhynchuspapyr13gren.pdf

14

http://www.archive.org/download/oxyrhynchuspapyr14gren/oxyrhynchuspapyr14gren.pdf

Best wishes

    Wieland

    <><

--------------------------

Wieland Willker, Bremen, Germany

http://www.uni-bremen.de/~wie

Textcritical commentary:

http://www.uni-bremen.de/~wie/TCG/