| Delivery period | Market | Contract | First trading day | Last trading day | First delivery day | Last delivery day |
|---|---|---|---|---|---|---|
| Weekly | GNLN_S | GNLN_S_46_26 | 9/9/2026 | 11/3/2026 | 11/9/2026 | 11/15/2026 |
| GNLN_S_47_26 | 9/16/2026 | 11/10/2026 | 11/16/2026 | 11/22/2026 | ||
| GNLN_S_48_26 | 9/23/2026 | 11/17/2026 | 11/23/2026 | 11/29/2026 | ||
| GNLN_S_49_26 | 9/30/2026 | 11/24/2026 | 11/30/2026 | 12/6/2026 | ||
| GNLN_S_50_26 | 10/7/2026 | 11/27/2026 | 12/7/2026 | 12/13/2026 | ||
| GNLN_S_51_26 | 10/14/2026 | 12/8/2026 | 12/14/2026 | 12/20/2026 | ||
| GNLN_S_52_26 | 10/21/2026 | 12/15/2026 | 12/21/2026 | 12/27/2026 | ||
| GNLN_S_53_26 | 10/28/2026 | 12/21/2026 | 12/28/2026 | 1/3/2027 | ||
| GNLN_S_01_27 | 11/4/2026 | 12/28/2026 | 1/4/2027 | 1/10/2027 | ||
| GNLN_S_02_27 | 11/11/2026 | 12/31/2026 | 1/11/2027 | 1/17/2027 | ||
| GNLN_S_03_27 | 11/18/2026 | 1/12/2027 | 1/18/2027 | 1/24/2027 | ||
| GNLN_S_04_27 | 11/25/2026 | 1/19/2027 | 1/25/2027 | 1/31/2027 | ||
| GNLN_S_05_27 | 12/2/2026 | 1/26/2027 | 2/1/2027 | 2/7/2027 | ||
| GNLN_S_06_27 | 12/9/2026 | 2/2/2027 | 2/8/2027 | 2/14/2027 | ||
| Monthly | GNLN_L | GNLN_L_Dec_26 | 5/27/2026 | 11/24/2026 | 12/1/2026 | 12/31/2026 |
| GNLN_L_Jan_27 | 6/26/2026 | 12/28/2026 | 1/1/2027 | 1/31/2027 | ||
| GNLN_L_Feb_27 | 7/29/2026 | 1/26/2027 | 2/1/2027 | 2/28/2027 | ||
| GNLN_L_Mar_27 | 8/27/2026 | 2/23/2027 | 3/1/2027 | 3/31/2027 | ||
| GNLN_L_Apr_27 | 9/28/2026 | 3/26/2027 | 4/1/2027 | 4/30/2027 | ||
| GNLN_L_May_27 | 10/28/2026 | 4/26/2027 | 5/1/2027 | 5/31/2027 | ||
| GNLN_L_Jun_27 | 11/25/2026 | 5/26/2027 | 6/1/2027 | 6/30/2027 | ||
| GNLN_L_Jul_27 | 12/29/2026 | 6/25/2027 | 7/1/2027 | 7/31/2027 | ||
| GNLN_L_Aug_27 | 1/27/2027 | 7/27/2027 | 8/1/2027 | 8/31/2027 | ||
| Quarterly | GNLN_TR | GNLN_TR_1_27 | 12/29/2025 | 12/28/2026 | 1/1/2027 | 3/31/2027 |
| GNLN_TR_2_27 | 3/27/2026 | 3/26/2027 | 4/1/2027 | 6/30/2027 | ||
| GNLN_TR_3_27 | 6/26/2026 | 6/25/2027 | 7/1/2027 | 9/30/2027 | ||
| GNLN_TR_4_27 | 9/28/2026 | 9/27/2027 | 10/1/2027 | 12/31/2027 | ||
| GNLN_TR_1_28 | 12/29/2026 | 12/28/2027 | 1/1/2028 | 3/31/2028 | ||
| Seasonal | GNLN_SM | GNLN_SM_1_2027 | 12/29/2025 | 12/28/2026 | 1/1/2027 | 6/30/2027 |
| GNLN_SM_2_2027 | 6/26/2026 | 6/25/2027 | 7/1/2027 | 12/31/2027 | ||
| GNLN_SM_1_2028 | 12/29/2026 | 12/28/2027 | 1/1/2028 | 6/30/2028 | ||
| Semester | GNLN_SMG | GNLN_SMG_S_2027 | 3/27/2026 | 3/26/2027 | 4/1/2027 | 9/30/2027 |
| GNLN_SMG_W_2027 | 9/28/2026 | 9/27/2027 | 10/1/2027 | 3/31/2028 | ||
| GNLN_SMG_S_2028 | 3/29/2027 | 3/28/2028 | 4/1/2028 | 9/30/2028 | ||
| Yearly | GNLN_AC | GNLN_AC_2027 | 12/27/2024 | 12/28/2026 | 1/1/2027 | 12/31/2027 |
| GNLN_AC_2028 | 12/29/2025 | 12/28/2027 | 1/1/2028 | 12/31/2028 | ||
| GNLN_AC_2029 | 12/29/2026 | 12/22/2028 | 1/1/2029 | 12/31/2029 | ||
| Yearly for gas year | GNLN_AG | GNLN_AG_2027 | 9/26/2025 | 9/27/2027 | 10/1/2027 | 9/30/2028 |
| GNLN_AG_2028 | 9/28/2026 | 9/26/2028 | 10/1/2028 | 9/30/2029 | ||
| GNLN_AG_2029 | 9/28/2027 | 9/25/2029 | 10/1/2029 | 9/30/2030 |