I think this could be an interesting project, and anyone can help with this.

I've always been curious about what gigs were canceled throughout Oasis' career, because there was usually something going on during every tour. Biggest areas I want to research are the gap from the Whiskey a Go-Go to The Uptown Bar, everything canceled in 1996, and the small gap after Scott McLeod left. 

If anyone wants to correct what I have, please do! 

And mods, if this is in the wrong place, I do apologize. 

Here's what we've got so far: 

1993:
10/01/1993 - Manchester, Hop & Grape at Manchester University (Rescheduled for October 14th)
10/07/1993 - Manchester, Hop & Grape at Manchester University

11/03/1993 - Wolverhampton, Wulfrun Hall
11/04/1993 - London, Powerhaus 

1994:
02/18/1994 - Amsterdam, Paradiso (The Ferry Incident)

04/09/1994 - Sheffield, Leadmill (Rescheduled for May 14th)
04/10/1994 - Hull, The Adelphi (Rescheduled for April 29th)

08/09/1994 - Newcastle, Riverside (WALKOUT)

09/30/1994 - San Diego, Casbah (Oasis would later played in San Diego on February 4th, but it is unknown if this gig was rescheduled to that date)

10/01/1994 - Tempe, Boston’s Bar and Grille (Oasis would later play in the Phoenix metro on February 5th, but it is unknown if this gig was rescheduled to that date)
10/03/1994 - Salt Lake City, The Bar and Grill (Oasis would later play at this location on February 7th, but it is unknown if this gig was rescheduled to that date)
10/04/1994 - Denver, Mercury Café (Oasis would later play in Denver on February 9th, but it is unknown if this gig was rescheduled to that date)
10/06/1994 - Dallas, Trees (Oasis would later play in Dallas on February 11th, but it is unknown if this gig was rescheduled to that date)
10/08/1994 - Austin, Liberty Lunch (Oasis would later play here on February 12th, 1995, but it is unknown if this gig was rescheduled)
10/10/1994 - University City (within St. Louis metro), Cicero's (Oasis would later schedule a date in St. Louis, but it is unknown if this gig was rescheduled to that date)
10/11/1994 - Lawrence (Just west of Kansas City), The Bottleneck
*10/12/1994 - Springfield(?), The Bottom Line

12/08/1994 - Middlesbrough, Town Hall (Liam had laryngitis, rescheduled for December 30th, 1994)  
12/09/1994 - Liverpool, Royal Court Theatre (Laryngitis, rescheduled for December 17th, 1994)

1995:
I am not 100% if they were scheduled to play each date for big day out, but here are the dates for each concert:
01/20/1995 - Auckland, Mt Smart Stadium
01/22/1995 - Melbourne, RAS Showgrounds
01/26/1995 - Sydney, RAS Showground
01/29/1995 - Gold Coast, Gold Coast Parklands

02/03/1995 - Adelaide, RAS Showgrounds
02/05/1995 - Perth, Fremantle Oval
02/09/1995 - Fukuoka, Scala Espacio (Liam throat infection)
02/10/1995 - Hiroshima Neopolis Hall
02/12/1995 - Osaka, Imperial Hall (Liam throat infection, rescheduled for Summer 1995)
02/13/1995 - Nagoya, Diamond Hall
02/14/1995 - Sapporo, Penny Lane
02/15/1995 - Sendai, Beeb Basement Theatre
02/16/1995 - Tokyo, Liquid Room (Liam throat infection, rescheduled for Summer 1995)
02/17/1995 - Tokyo, Liquid Room (Liam throat infection, rescheduled for Summer 1995)
02/20/1995 - Kawasaki, Club Citta (Liam throat infection, rescheduled for Summer 1995)
02/21/1995 - Kawasaki, Club Citta (Liam throat infection, rescheduled for Summer 1995)

03/18/1995 - Indianapolis, Tyndall Armory (WALKOUT)
03/xx/1995 - St. Louis

07/20/1995 - Lisbon, Alvalade Stadium (R.E.M.'s Mike Mills' had abdominal surgery to remove an intestinal adhesion)
07/25/1995 - Huddersfield, McAlpine Stadium (Oasis pulled out of support slot to finish recording) 

09/13/1995 - Blackpool, Empress Ballroom (Canceled due to Guigsy leaving but rescheduled for October 2nd) 
09/14/1995 - Stoke, Trentham Gardens (Canceled due to Guigsy leaving but rescheduled for October 3rd)
09/15/1995 - Leicester, Granby Hall (Canceled due to Guigsy leaving but rescheduled for November 17th)
09/17/1995 - Gloucester, Leisure Hall (Canceled due to Guigsy leaving but rescheduled for October 6th)
09/18/1995 - Bournemouth, International Centre (Canceled initially due to a possible brawl between Oasis/Blur fans, reinstated once Guigsy left and the tour was pushed back to October 5th)
09/20/1995 - Brussels, La Luna Theatre (Canceled due to Guigsy leaving but rescheduled for October 31st) 
09/23/1995 - Stockholm, Eriksdalshallen (Rescheduled for October 27th, but was rescheduled again)
09/xx/1995 - Copenhagen, Grey Hall (Rescheduled for October 29th, but was rescheduled again)

10/17/1995 - Buffalo, Ogden Street Concert Hall (Scott McLeod left)
10/18/1995 - Toronto, The Warehouse (Scott McLeod left, gig would be rescheduled to December 13th)
10/20/1995 - Columbus (Scott McLeod left)
10/21/1995 - Chicago, Riviera Theatre (Scott McLeod left)
10/22/1995 - Royal Oak, Royal Oak Music Theatre (Scott McLeod left)
10/27/1995 - Stockholm, Eriksdalshallen (Rescheduled and possibly moved to the bigger Annexet on November 20th)
10/29/1995 - Copenhagen, Grey Hall (It is possible there was a previous date, possibly moved to the K.B. Hallen on November 24th)

11/08/1995 - Utrecht, Vredenburg Music Centre (Rescheduled for January 10th, 1996)
11/11/1995 - Berlin, Huxley's (Rescheduled for January 14th, 1996)
11/24/1995 - Edinburgh, Royal Highland Centre (Rescheduled for January 22nd, 1996)
11/25/1995 - Whitley Bay, Whitley Bay Ice Rink (Rescheduled for January 19th, 1996)
*11/28/1995 - Birmingham (Liam lost his voice)?
*11/29/1995 - Cardiff (Liam lost his voice)?
*11/30/1995 - Sheffield (Liam lost his voice)?

1996:
02/29/1996 - Milwaukee, Eagles Ballroom (Early tour schedules say this gig was supposed to be on the 29th, but it was rescheduled for the 1st of March) 

03/09/1996 - Great Gorge Ski Resort, Vernon Valley (NOEL WALKOUT) (Oasis were billed, only Noel showed up, left after two songs because it was cold)

04/04/1996 - Bordeaux, La Medoquine (Canceled day of, rescheduled for October 4th before everything was canceled) 
04/10/1996 - Vancouver, Pacific Coliseum (WALKOUT)
04/15/1996 - Los Angeles, Universal Amphitheatre (Noel had flu)
04/16/1996 - Mesa, Mesa Amphitheatre (Noel had flu)

08/28/1996 - Dayton, Hara Arena (canceled for unknown reasons)?

09/11/1996 - Charlotte, Independence Arena -> Charlotte Hornets Training Center (Gig is canceled two hours before)
09/13/1996 - Atlanta, Omni Arena
09/15/1996 - West Palm Beach, West Palm Beach Auditorium (Would later show up on the Be Here Now Tour)
09/16/1996 - Orlando, Orlando Arena
09/18/1996 - Tampa Bay, USF Sun Dome
09/26/1996 - Düsseldorf, Philipshalle (Oasis Canceled all tours)
09/29/1996 - Paris, Bercy 
09/30/1996 - Geneva, Geneva Arena

10/02/1996 - Rome, Palazzo dello Sport
10/04/1996 - Bordeaux, La Medoquine
10/06/1996 - Madrid, Pabellon del Real Madrid
10/07/1996 - Barcelona

11/xx/1996 - Mesa, Mesa Amphitheatre(?) (MTV News reported that Oasis were to make up the dates they canceled in Los Angeles and Phoenix, I do no know if it would be in front of or behind the Los Angeles gigs)
11/04/1996 - Los Angeles, Universal Amphitheatre
11/05/1996 - Los Angeles, Universal Amphitheatre
11/11/1996 - Honolulu, Hawaii 
11/15/1996 - Auckland, SuperTop
11/18/1996 - Melbourne, Melbourne Park
11/19/1996 - Melbourne, Melbourne Park
11/23/1996 - Sydney, Sydney Showgrounds 
11/26/1996 - Brisbane, Entertainment Centre
11/29/1996 - Adelaide, Entertainment Centre

12/02/1996 - Perth, Entertainment Centre
12/xx/1996 - Hong Kong(?)
(Thank you nutsngum for the November and December dates)
 
1997: 
11/04/1997 - Paris, The Bercy (Trucker strike)
11/06/1997 - Angers, Parc des Expositions (Trucker strike)
11/07/1997 - Bordeaux, Patinoire (Trucker strike)

12/07/1997 - Glasgow, SECC (WALKOUT)

1998:
01/14/1998 - Montreal, Molson Centre (Canceled due to an snow ice storm) (Thank you underneaththesky )

03/11/1998 - Auckland, Carter Holt Pavilion (rescheduled to March 9th due to change in international flight schedule)  

2000:
03/22/2000 - Cologne, E-Work (Rescheduled for March 25th)

04/25/2000 - Pittsburgh, A.J. Palumbo Center (Gig was "canceled" and rescheduled for the Palace Theater in Columbus on the 24th because of scheduling problems)
05/04/2000 - Charlotte, Ovens Auditorium(?) 
05/09/2000 - Mexico City, Palacio de los Deportes 

05/20/2000 - Barcelona, Pavelló de la Vall d'Hebron (Alan White tendinitis) (Rescheduled for July 4th)
05/21/2000 - Marseille, Dock Des Suds (Noel walks out, possibly rescheduled for the June 19th performance at Le Dome?)
05/23/2000 - Paris, Bercy  (Noel walks out) (Free concert at Fete de la Musique on 21st of June was set up because of the cancelation)
05/25/2000 - Rennes, Le Liberte (Noel walks out)
05/27/2000 - Clermont-Ferrand, Coopérative (Noel walks out)
05/28/2000 - Metz, Le Galaxie (Noel walks out)

06/13/2000 - Hamburg, Sporthalle (Rescheduled for June 22nd (reason unknown))

07/01/2000 - Roskilde Festival (Band pulled out in respect for the 9 lives lost during the Pearl Jam concert)
07/26/2000 - Nyon, Paleo Festival (WALKOUT)

08/06/2000 - Odemira, Sudoeste Festival (WALKOUT)

2001:
05/24/2001 - Cincinnati, Riverbend Music Center (Rising flood waters) 
05/29/2001 - Pittsburgh, A.J. Palumbo Center (Severe weather)

2002:
07/23/2002 - Salamanca, Plaza de Toros La Glorieta (Liam with a throat infection)

08/07/2002 - Indianapolis, Murat Theatre (Car accident)
08/09/2002 - Philadelphia, Tower Theatre (Car accident)
08/10/2002 - Boston, Fleet Pavilion (Car accident)

09/19/2002 - Bremen, Pier 2 (Rescheduled for December 5th (reason unknown) but was officially cancelled post Munich brawl)
09/20/2002 - Stuttgart, Messe B (Rescheduled for November 28th (reason unknown))

10/23/2002 - Manila, Araneta Coliseum (Worries over terrorism)
10/26/2002 - Singapore, Singapore Indoor Stadium (Worries over terrorism)

11/26/2002 - Nancy, Zénith (Trucker Strike)
11/30/2002 - Bilbao, Pabelleon de la Casilla (Rescheduled for November 20th (reason unknown))

12/01/2002 - Munich, Zenith (Munich Brawl, rescheduled for March 11th, 2003)
12/02/2002 - Hamburg, Color Line Arena (Munich Brawl, rescheduled for March 8th, 2003)
12/04/2002 - Düsseldorf, Philips Halle (Munich Brawl, rescheduled for March 9th, 2003)
12/05/2002 - Bremen, Pier 2 (After the Munich brawl, this gig was officially cancelled) 

2005:
06/08/2005 - Copenhagen, Vega (Postponed due to high demand and moved to a bigger arena. Their gig in Copenhagen on October 21st at the Valby-Hallen would result) 

09/25/2005 - Houston, Cynthia Wood's Mitchell Pavilion (Canceled due to hurricane Rita. Rescheduled for late March 2006)

2008:
(Initially, Oasis canceled all the shows from the 9th to the 30th which include the John Labatt Centre in London, Ontario, Terminal 5, Eden Project, Gloria Theatre in Cologne, and The Bercy in Paris. All of these gigs except the New York City show were rescheduled)
09/09/2008 - London, John Labatt Centre (Noel was attacked, rescheduled for December 15th)
09/12/2008 - New York City, Terminal 5
09/27/2008 - Cornwall, The Eden Project (Noel was attacked, rescheduled for July 14th, 2009)
09/29/2008 - Cologne, Gloria Theatre (Noel was attacked, rescheduled November 7th)
09/30/2008 - Paris, The Bercy (Noel was attacked, rescheduled for November 10th)

11/25/2008 - Mexico City, Palacio de los Deportes

2009:
01/19/2009 - Düsseldorf, Philips Halle (Liam had a throat infection, gig was rescheduled to February 4th)

04/03/2009 - Beijing, Capital Gym (They found out Noel did a Free Tibet concert in 1997)
04/05/2009 - Shanghai, Grand Stage (They found out Noel did a Free Tibet concert in 1997)

08/23/2009 - Chelmsford, V Festival (Liam had a throat infection)
08/28/2009 - Paris, Rock en Seine (Noel leaves the band for good)
08/29/2009 - Constance, Lake Constance Stadium (Noel left the band for good)
08/30/2009 - Milan, I-Days Festival (Noel left the band for good)