The Denver Nuggets have grabbed the most offensive rebounds per game by a team in a season with 18.5 per game in 1990-91.

most offensive rebounds per game by a team in nba history in a season

TEAM	OREB	SEASON	GP	MPG	PPG	RPG	APG	SPG	BPG	TPG	FGM	FGA	FG%	3PM	3PA	3P%	FTM	FTA	FT%	MIN	PTS	REB	AST	STL	BLK	TOV	PF
Denver Nuggets	18.5	1990-91	82	240.6	119.9	49.4	24.5	10.4	5.0	16.2	47.6	108.1	44.0	3.7	12.9	28.3	21.0	27.6	76.3	19,730	9,828	4,050	2,005	856	406	1,332	2,235
Dallas Mavericks	18.5	1994-95	82	243.0	103.2	48.1	23.7	7.1	4.2	16.4	39.4	89.5	44.0	4.7	14.6	32.2	19.8	27.0	73.4	19,930	8,462	3,947	1,941	579	348	1,345	1,811
New Jersey Nets	18.4	1991-92	82	241.2	105.4	47.6	23.6	9.0	7.5	17.0	42.4	92.4	45.8	2.7	8.2	33.4	17.9	24.5	73.2	19,780	8,641	3,904	1,937	736	615	1,392	1,834
Seattle SuperSonics	17.8	1977-78	82	241.2	104.5	49.5	21.9	9.5	5.2	20.0	42.0	94.1	44.7				20.4	28.7	71.2	19,780	8,565	4,057	1,799	782	429	1,636	2,008
Atlanta Hawks	17.6	1974-75	82	241.5	105.1	49.9	22.9	9.1	2.8	18.9	41.8	95.4	43.8				21.6	29.7	72.8	19,805	8,620	4,094	1,878	744	227	1,550	1,964
Detroit Pistons	17.4	1983-84	82	242.7	117.1	47.1	27.5	8.5	5.1	16.0	46.3	96.5	48.0	0.4	1.7	22.7	24.1	31.1	77.5	19,905	9,602	3,861	2,256	697	417	1,310	2,177
Golden State Warriors	17.3	1974-75	82	241.2	108.5	52.1	25.3	11.9	4.5	20.9	45.3	97.3	46.5				17.9	23.4	76.8	19,780	8,898	4,270	2,076	972	365	1,716	2,109
New Jersey Nets	17.2	1996-97	82	241.2	97.2	46.2	21.0	8.3	5.9	15.7	36.5	86.5	42.2	5.9	16.7	35.3	18.3	24.8	74.0	19,780	7,974	3,786	1,726	677	481	1,290	1,865
Indiana Pacers	17.2	1976-77	82	240.9	106.8	48.7	24.5	11.3	5.6	19.6	43.0	95.6	44.9				20.9	28.0	74.6	19,755	8,758	3,993	2,009	924	458	1,609	2,030
Dallas Mavericks	17.2	1995-96	82	243.0	102.5	46.2	23.3	7.8	4.2	15.5	38.1	90.6	42.0	9.0	24.9	36.0	17.4	24.1	72.2	19,930	8,409	3,787	1,913	642	342	1,270	1,836
Detroit Pistons	17.1	1984-85	82	241.8	116.0	48.0	28.1	8.4	4.8	16.4	46.8	97.5	48.0	0.5	2.4	22.6	21.7	27.6	78.8	19,830	9,508	3,937	2,302	691	397	1,341	2,076
Houston Rockets	17.1	1981-82	82	241.2	105.9	45.0	24.1	7.9	5.2	16.1	42.7	89.8	47.6	0.6	2.1	28.4	19.8	27.1	72.9	19,780	8,680	3,687	1,977	648	430	1,321	1,871
Golden State Warriors	17.1	1980-81	82	240.6	109.8	46.0	24.7	7.5	3.7	18.9	43.4	88.8	48.9	0.7	2.6	28.6	22.3	30.6	72.7	19,730	9,006	3,769	2,026	611	301	1,547	2,158
New Jersey Nets	17.1	1990-91	82	241.8	102.9	45.7	21.7	9.1	7.3	17.4	40.4	91.0	44.4	2.0	7.1	27.5	20.2	27.4	73.9	19,830	8,441	3,748	1,782	748	600	1,423	1,954
Indiana Pacers	17.0	1979-80	82	242.1	111.2	45.4	26.2	11.0	6.5	18.5	44.4	93.8	47.3	1.1	3.8	28.0	21.4	28.5	75.1	19,855	9,119	3,724	2,148	900	530	1,517	1,973
Seattle SuperSonics	17.0	1988-89	82	241.2	112.1	44.3	25.4	10.5	6.0	17.1	43.5	91.2	47.7	3.6	9.4	37.9	21.6	29.0	74.6	19,780	9,196	3,635	2,083	864	494	1,403	2,027
San Diego Clippers	17.0	1982-83	82	241.8	108.6	42.7	25.5	10.0	5.0	19.5	44.2	93.1	47.5	0.8	3.2	24.4	19.4	26.8	72.4	19,830	8,903	3,502	2,087	820	408	1,600	2,284
Houston Rockets	17.0	1979-80	82	243.0	110.8	44.0	26.2	9.5	4.5	19.1	43.9	91.4	48.0	1.3	4.6	27.4	21.7	28.4	76.6	19,930	9,084	3,611	2,149	782	373	1,565	1,927
San Diego Clippers	17.0	1978-79	82	240.6	113.1	46.4	18.8	8.6	4.8	19.8	45.4	94.0	48.3				22.4	30.1	74.3	19,730	9,278	3,805	1,539	703	392	1,623	2,127
Golden State Warriors	17.0	1983-84	82	241.8	109.9	43.4	22.4	10.1	4.2	18.5	42.9	91.9	46.7	0.7	2.8	24.3	23.4	31.4	74.3	19,830	9,008	3,561	1,837	830	348	1,518	2,108
Indiana Pacers	16.9	1977-78	82	241.8	108.6	48.9	24.2	9.9	5.6	20.0	42.7	94.9	45.0				23.2	31.3	74.3	19,830	8,904	4,010	1,982	808	456	1,642	2,230
Philadelphia 76ers	16.9	1975-76	82	242.1	106.5	49.6	20.2	9.9	4.5	21.1	42.2	94.5	44.7				22.1	30.1	73.3	19,855	8,735	4,069	1,658	809	367	1,729	2,187
Portland Trail Blazers	16.9	1988-89	82	241.8	114.6	45.9	27.0	10.1	4.7	17.5	45.1	95.1	47.4	2.6	7.9	33.5	21.8	29.5	74.0	19,830	9,395	3,765	2,212	828	388	1,435	2,026
Atlanta Hawks	16.8	1978-79	82	242.1	109.1	45.4	23.6	9.8	7.3	18.6	42.7	90.4	47.3				23.7	30.9	76.6	19,855	8,950	3,722	1,938	801	596	1,523	2,424
Seattle SuperSonics	16.8	1979-80	82	241.8	108.5	47.9	24.9	9.1	5.2	18.2	43.3	92.3	47.0	0.7	2.3	31.2	21.1	27.5	76.8	19,830	8,897	3,930	2,043	750	428	1,496	1,865