Production Data

API #:	Facility Name/Number:	Current Operator Name:	Operator #:	Location:	Field:	Field Code:
05-123-38093	Grant Hurt-1H-14H G268	CRESTONE PEAK RESOURCES OPERATING LLC	10633	SWNE 14 2N 68W 6	WATTENBERG	90750

Well Status Production
Produced Water
Geothermal

Toggle First of Month column to sort report by date.

First of Month	Operator Name	API County	API Sequence	Formation	Well Status	Days Produced	BOM Inventory	Oil Produced	Oil Sold	Oil Adjustment	EOM Inventory	Oil Gravity	Gas Produced	Gas Sold	Targeted Gas Type	Gas BTU	Water Volume	Water Disp Code
12/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	70	249	281	-1	37	58.2	5658	5658	Methane	1346	70
11/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	88	254	259		83	61.2	4904	4904	Methane	1345
10/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	56	245	200	-1	100	60.8	4858	4858	Methane	1345
9/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	80	258	270	-1	67	54.8	4815	4815	Methane	1345
8/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	80	301	288		93	58.6	5182	5182	Methane	1345
7/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	57	302	267		92	59.2	5481	5481	Methane	1295
6/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	95	338	367		66	59.5	5567	5567	Methane	1295
5/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	93	356	340		109	61	5562	5562	Methane	1296
4/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	21	24	192	126		90	62.9	3823	3823	Methane	1320
3/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	25	64	289	299		54	61.2	4334	4334	Methane	1321
2/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	100	306	330		76	61.3	4859	4859	Methane	1320
1/1/2025	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	64	354	303		115	60.4	5718	5718	Methane	1322
12/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	81	389	407		63	61.5	5209	5209	Methane	1322
11/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	48	366	333		81	59	4983	4983	Methane	1322
10/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	87	370	409		48	59.3	5135	5135	methane	1321
9/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	97	290	300		87	59.9	4620	4620		1321
8/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	86	314	302	-1	97	57.5	5143	5143		1321
7/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	41	287	243	1	86	58.8	5547	5547		1343
6/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	67	317	343		41	58.9	4921	4921		1343
5/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	55	327	315		67	58.1	5062	5062		1342
4/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	101	323	370	1	55	59.1	5017	5017		1327
3/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	82	352	333		101	57.9	5360	5360		1327
2/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	29	95	328	341		82	58.3	5096	5096		1327
1/1/2024	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	92	351	350	1	94	60.1	5578	5578		1327
12/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	68	354	331	1	92	57.1	5136	5136		1328
11/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	84	351	366	-1	68	61.5	4868	4868		1329
10/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	61	400	374		87	60.9	5543	5543		1330
9/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	42	258	240	1	61	60.4	4975	4975		1320
8/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	162	231	352		41	62.4	5129	5129		1320
7/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	159	377	375	-1	160	63	6868	6868		1320
6/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	196	438	475		159	60.5	6984	6984		1320
5/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	178	500	482		196	60.5	7051	7051		1320
4/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	173	514	509		178	62.1	7015	7015		1320
3/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	202	560	589		173	61.5	7451	7451		1321
2/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	130	461	389		202	60.2	6825	6825		1321
1/1/2023	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	136	423	429		130	59.1	7678	7678		1319
12/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	216	345	425		136	59.5	6500	6500		1318
11/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	159	354	297		216	58.5	6688	6688		1318
10/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	46	405	293	1	159	59.3	7886	7886		1333
9/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	106	312	373	1	46	58	6341	6341		1333
8/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	112	372	378		106	56.1	7167	7167		1315
7/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	96	337	321		112	56.1	7012	7012		1314
6/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	79	346	330		95	57.2	6978	6978		1314
5/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	148	342	411		79	59.3	8567	8567		1328
4/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	110	408	370		148	59.5	9211	9211		1329
3/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	77	443	410		110	59.8	8162	8162		1330
2/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	79	371	373		77	59.4	6761	6761		1324	15	M
1/1/2022	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	72	399	393	1	79	62.4	7489	7489		1326	41	M
12/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	79	448	450		77	59.7	8146	8146		1343	54	M
11/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	51	399	371		79	59.2	7448	7448		1342	32	M
10/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	68	388	405		51	58.8	7517	7517		1349	31	M
9/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	64	339	335		68	58.5	7038	7038		1308	15	M
8/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	70	330	336		64	58.4	7799	7799		1344	15	M
7/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	25	45	261	236		70	61.5	6544	6544		1309	16	M
6/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	51	279	285		45	59.2	7140	7140		1346	10	M
5/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	40	348	337		51	61	8383	8383		1347	21	M
4/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	69	336	365		40	60.4	8081	8081		1347	10	M
3/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	39	335	305		69	61.2	7751	7751		1347	6	M
2/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	67	252	280		39	61.2	7027	7027		1347	20	M
1/1/2021	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	45	393	371		67	60.3	8878	8878		1346	38	M
12/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	59	533	547		45	59.3	10926	10926		1346	58	M
11/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	48	525	514		59	58.9	10818	10818		1346	47	M
10/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	38	348	338		48	58.8	11131	11131		1346	19	M
9/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	73	215	250		38	58.5	10868	10868		1346	44	M
8/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	104	374	405		73	58.2	11439	11439		1346	12	M
7/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	131	539	566		104	58.3	11496	11496		1322	42	M
6/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	122	627	618		131	59	11980	11980		1323	51	M
5/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	95	700	673		122	59.6	13508	13508		1323	81	M
4/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	63	628	596		95	59.8	13152	13152		1339	29	M
3/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	14	55	215	207		63	63.5	4783	4783		1340	27	M
2/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	17	117	318	380		55	62.2	6104	6104		1340	98	M
1/1/2020	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	120	630	633		117	61.4	12102	12102		1346	191	M
12/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	135	685	700		120	61.3	12511	12511		1346	201	M
11/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	124	698	687		135	59.4	12487	12487		1346	194	M
10/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	93	693	662		124	60.4	13007	13007		1301	141	M
9/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	49	582	538		93	57.9	12151	12151		1300	142	M
8/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	73	567	591		49	57.8	13062	13062		1300	122	M
7/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	67	692	686		73	57.7	13467	13467		1302	171	M
6/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	91	767	791		67	58.6	14082	14082		1302	184	M
5/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	109	811	829		91	59.2	14500	14500		1302	195	M
4/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	99	822	812		109	59.1	14494	14494		1301	225	M
3/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	144	872	917		99	59.2	14485	14485		1301	225	M
2/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	131	779	766		144	59.5	13154	13154		1301	190	C
1/1/2019	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	130	856	855		131	59.1	14351	14351		1301	155	C
12/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	67	899	836		130	58.8	14669	14669		1301	216	C
11/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	56	923	912		67	57.3	14549	14549		1301	119	C
10/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	177	928	1049		56	56.7	15341	15341		1296	112	C
9/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	152	773	748		177	56.4	13571	13571		1296	207	C
8/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	194	817	859		152	55.9	14285	14285		1296	100	C
7/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	136	883	825		194	56.1	14877	14877		1304	118	C
6/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	61	893	818		136	55.6	14592	14592		1304	105	C
5/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	46	944	929		61	56.2	15279	15279		1304	199	C
4/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	58	955	967		46	57	15068	15068		1284	206	C
3/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	81	969	992		58	56.6	15414	15414		1287	34	C
2/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	62	1033	1014		81	57.4	14294	14294		1287	264	C
1/1/2018	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	62	1115	1115		62	57.1	16283	16283		1283	271	C
12/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	85	1263	1286		62	56.9	16601	16601		1283	296	C
11/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	120	1205	1240		85	55.6	14370	14370		1283	368	C
10/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	117	1157	1154		120	55.2	13073	13073		1294	235	C
9/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	96	1216	1195		117	53.6	13595	13595		1294	250	C
8/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	111	1264	1279		96	54.2	14307	14307		1294	285	C
7/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	364	1411	1664		111	53.5	14975	14975		1262	322	C
6/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	122	1293	1051		364	54.5	14708	14708		1262	268	C
5/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	124	1252	1254		122	55.3	14329	14329		1262	127	C
4/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	107	1523	1506		124	55.5	15239	15239		1308	203	C
3/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	119	1617	1629		107	54.9	15566	15566		1308	165	C
2/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	28	142	1505	1528		119	54.9	14822	14822		1308	266	C
1/1/2017	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	149	1629	1636		142	54	15799	15799		1283	206	C
12/1/2016	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	98	1793	1742		149	54.2	17296	17296		1283	196	M
11/1/2016	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	123	1675	1700		98	54	16993	16993		1283	137	C
10/1/2016	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	150	1930	1957		123	53.2	18566	18566		1292	190	C
9/1/2016	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	30	162	1992	2004		150	52.1	18486	18486		1292	143	C
8/1/2016	CRESTONE PEAK RESOURCES OPERATING LLC	123	38093	NIOBRARA	PR	31	186	2189	2213		162	52.4	19260	19260		1292	151	C
7/1/2016	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	98	2170	2082		186	50.9	18108	18108		1306	67	C
6/1/2016	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	30	178	2179	2259		98	51.2	18993	18993		1306	308	C
5/1/2016	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	187	2576	2585		178	50.9	22053	22053		1306	309	M
4/1/2016	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	30	208	2630	2651		187	50.5	21395	21395		1300	692	C
3/1/2016	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	231	3004	3027		208	50.8	22558	22558		1300	775	C
2/1/2016	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	29	219	3025	3013		231	50.5	22782	22782		1308	828	M
1/1/2016	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	233	3574	3588		219	50.3	25292	25292		1308	885	M
12/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	328	4153	4248		233	51.1	27015	27015		1308	1017	C
11/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	30	284	4413	4369		328	49.9	20502	20502		1376	991	C
10/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	235	5197	5148		284	50	22710	22710		1376	1290	C
9/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	30	325	4988	5078		235	49.2	17316	17316		1376	1158	C
8/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	342	6175	6192		325	48.7	20890	20890		1376	1269	C
7/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	29	402	6122	6182		342	48	16403	16403		1376	1194	C
6/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	30	430	7146	7171	-3	402	47.9	15694	15694		1376	1702	C
5/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	31	97	8775	8436	-6	430	47.8	16880	16880		1376	2637	C
4/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	PR	22		5603	5503	-3	97	48	10654	10654		1376	1835	C
3/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	WO	0
2/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	WO	0
1/1/2015	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	WO	0
12/1/2014	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	WO	0
11/1/2014	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	WO	0
10/1/2014	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	DG	0
9/1/2014	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	DG	0
8/1/2014	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	DG	0
7/1/2014	ENCANA OIL & GAS (USA) INC	123	38093	NIOBRARA	DG	0

COGIS DB