The Kansas City Royals allowed the most runs by a team in 2006, with 971 runs.

	TEAM	R	SEASON	G	W%	W	L	GS	ERA	SO	CG	SHO	SV	IP	H	ER	HR	BB	HBP	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	H/9
1	Royals	971	2006	162	.383	62	100	162	5.65	904	3	2	35	1426.1	1,648	896	213	637	60	45	6,434	85	5.70	4.02	1.42	1.34	14.1	9.9	1.60	.311	6.13	10.40
2	Orioles	899	2006	162	.432	70	92	162	5.35	1,016	5	1	35	1419.0	1,579	843	216	613	48	26	6,327	59	6.44	3.89	1.66	1.37	16.1	9.7	1.54	.307	5.70	10.01
3	Nationals	872	2006	162	.438	71	91	162	5.03	960	1	1	32	1436.1	1,535	803	193	584	92	93	6,424	47	6.02	3.66	1.64	1.21	14.9	9.1	1.48	.292	5.46	9.62
4	Devil Rays	856	2006	162	.377	61	101	162	4.96	979	3	2	33	1420.1	1,600	782	180	606	63	39	6,374	70	6.20	3.84	1.62	1.14	15.4	9.5	1.55	.312	5.42	10.14
5	Cubs	834	2006	162	.407	66	96	162	4.74	1,250	2	1	29	1439.0	1,396	758	210	687	67	44	6,366	68	7.82	4.30	1.82	1.31	19.6	10.8	1.45	.286	5.22	8.73
6	Brewers	833	2006	162	.463	75	87	162	4.82	1,145	7	5	43	1425.2	1,454	763	177	514	74	34	6,210	57	7.23	3.24	2.23	1.12	18.4	8.3	1.38	.297	5.26	9.18
7	Red Sox	825	2006	162	.531	86	76	162	4.83	1,070	3	1	46	1441.1	1,570	773	181	509	68	25	6,292	52	6.68	3.18	2.10	1.13	17.0	8.1	1.44	.311	5.15	9.80
8	Phillies	812	2006	162	.525	85	77	162	4.60	1,138	4	2	42	1460.1	1,561	747	211	512	62	63	6,366	58	7.01	3.16	2.22	1.30	17.9	8.0	1.42	.304	5.00	9.62
9	Rockies	812	2006	162	.469	76	86	162	4.66	952	5	4	34	1447.1	1,549	749	155	553	66	81	6,318	43	5.92	3.44	1.72	0.96	15.1	8.8	1.45	.304	5.05	9.63
10	Braves	805	2006	162	.488	79	83	162	4.60	1,049	6	2	38	1441.1	1,529	736	183	572	55	69	6,350	39	6.55	3.57	1.83	1.14	16.5	9.0	1.46	.300	5.03	9.55
11	Reds	801	2006	162	.494	80	82	162	4.51	1,053	9	3	36	1445.2	1,576	725	213	464	60	55	6,319	40	6.56	2.89	2.27	1.33	16.7	7.3	1.41	.301	4.99	9.81
12	Pirates	797	2006	162	.414	67	95	162	4.52	1,060	2	1	39	1435.0	1,545	720	156	620	70	62	6,354	61	6.65	3.89	1.71	0.98	16.7	9.8	1.51	.312	5.00	9.69
13	White Sox	794	2006	162	.556	90	72	162	4.61	1,012	5	2	46	1449.0	1,534	743	200	433	58	59	6,232	51	6.29	2.69	2.34	1.24	16.2	6.9	1.36	.295	4.93	9.53
14	Mariners	792	2006	162	.481	78	84	162	4.60	1,067	6	2	47	1446.2	1,500	739	183	560	53	50	6,294	47	6.64	3.48	1.91	1.14	17.0	8.9	1.42	.297	4.93	9.33
15	Giants	790	2006	161	.472	76	85	161	4.63	992	7	3	37	1429.2	1,422	735	153	584	70	37	6,225	50	6.24	3.68	1.70	0.96	15.9	9.4	1.40	.287	4.97	8.95
16	Diamondbacks	788	2006	162	.469	76	86	162	4.48	1,115	8	4	34	1459.2	1,503	727	168	536	61	44	6,341	53	6.87	3.30	2.08	1.04	17.6	8.5	1.40	.299	4.86	9.27
17	Rangers	784	2006	162	.494	80	82	162	4.60	972	3	1	42	1431.1	1,558	731	162	496	66	18	6,237	34	6.11	3.12	1.96	1.02	15.6	8.0	1.44	.307	4.93	9.80
18	Indians	782	2006	162	.481	78	84	162	4.41	948	13	6	24	1423.1	1,583	698	166	429	51	35	6,190	46	5.99	2.71	2.21	1.05	15.3	6.9	1.41	.308	4.94	10.01
19	Marlins	772	2006	162	.481	78	84	162	4.37	1,088	6	2	41	1433.1	1,465	696	166	622	74	58	6,294	47	6.83	3.91	1.75	1.04	17.3	9.9	1.46	.299	4.85	9.20
20	Yankees	767	2006	162	.599	97	65	162	4.41	1,019	5	1	43	1443.2	1,463	708	170	496	59	41	6,215	46	6.35	3.09	2.05	1.06	16.4	8.0	1.36	.289	4.78	9.12
21	Cardinals	762	2006	161	.516	83	78	161	4.54	970	6	3	38	1429.2	1,475	721	193	504	80	35	6,196	35	6.11	3.17	1.92	1.21	15.7	8.1	1.38	.288	4.80	9.29
22	Blue Jays	754	2006	162	.537	87	75	162	4.37	1,076	6	1	42	1428.1	1,447	694	185	504	59	56	6,151	53	6.78	3.18	2.13	1.17	17.5	8.2	1.37	.292	4.75	9.12
23	Dodgers	751	2006	162	.543	88	74	162	4.23	1,068	1	0	40	1460.1	1,524	686	152	492	41	40	6,289	54	6.58	3.03	2.17	0.94	17.0	7.8	1.38	.302	4.63	9.39
24	Angels	732	2006	162	.549	89	73	162	4.04	1,164	5	3	50	1452.2	1,410	652	158	471	50	27	6,149	85	7.21	2.92	2.47	0.98	18.9	7.7	1.29	.291	4.54	8.74
25	Mets	731	2006	162	.599	97	65	162	4.14	1,161	5	3	43	1461.1	1,402	673	180	527	62	39	6,240	37	7.15	3.25	2.20	1.11	18.6	8.4	1.32	.284	4.50	8.63