| Delivery period | Market | Contract | First trading day | Last trading day | First delivery day | Last delivery day |
|---|---|---|---|---|---|---|
| Weekly | GNLN_S | GNLN_S_20_26 | 3/11/2026 | 5/5/2026 | 5/11/2026 | 5/17/2026 |
| GNLN_S_21_26 | 3/18/2026 | 5/12/2026 | 5/18/2026 | 5/24/2026 | ||
| GNLN_S_22_26 | 3/25/2026 | 5/19/2026 | 5/25/2026 | 5/31/2026 | ||
| GNLN_S_23_26 | 4/1/2026 | 5/26/2026 | 6/1/2026 | 6/7/2026 | ||
| GNLN_S_24_26 | 4/7/2026 | 6/2/2026 | 6/8/2026 | 6/14/2026 | ||
| GNLN_S_25_26 | 4/15/2026 | 6/9/2026 | 6/15/2026 | 6/21/2026 | ||
| GNLN_S_26_26 | 4/22/2026 | 6/16/2026 | 6/22/2026 | 6/28/2026 | ||
| GNLN_S_27_26 | 4/28/2026 | 6/23/2026 | 6/29/2026 | 7/5/2026 | ||
| GNLN_S_28_26 | 5/6/2026 | 6/30/2026 | 7/6/2026 | 7/12/2026 | ||
| GNLN_S_29_26 | 5/13/2026 | 7/7/2026 | 7/13/2026 | 7/19/2026 | ||
| GNLN_S_30_26 | 5/20/2026 | 7/14/2026 | 7/20/2026 | 7/26/2026 | ||
| GNLN_S_31_26 | 5/27/2026 | 7/21/2026 | 7/27/2026 | 8/2/2026 | ||
| GNLN_S_32_26 | 6/3/2026 | 7/28/2026 | 8/3/2026 | 8/9/2026 | ||
| GNLN_S_33_26 | 6/10/2026 | 8/4/2026 | 8/10/2026 | 8/16/2026 | ||
| Monthly | GNLN_L | GNLN_L_Jun_26 | 11/26/2025 | 5/26/2026 | 6/1/2026 | 6/30/2026 |
| GNLN_L_Jul_26 | 12/29/2025 | 6/25/2026 | 7/1/2026 | 7/31/2026 | ||
| GNLN_L_Aug_26 | 1/28/2026 | 7/28/2026 | 8/1/2026 | 8/31/2026 | ||
| GNLN_L_Sep_26 | 2/25/2026 | 8/26/2026 | 9/1/2026 | 9/30/2026 | ||
| GNLN_L_Oct_26 | 3/27/2026 | 9/25/2026 | 10/1/2026 | 10/31/2026 | ||
| GNLN_L_Nov_26 | 4/28/2026 | 10/27/2026 | 11/1/2026 | 11/30/2026 | ||
| 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 | ||
| Quarterly | GNLN_TR | GNLN_TR_3_26 | 6/26/2025 | 6/25/2026 | 7/1/2026 | 9/30/2026 |
| GNLN_TR_4_26 | 9/26/2025 | 9/25/2026 | 10/1/2026 | 12/31/2026 | ||
| 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 | ||
| Seasonal | GNLN_SM | GNLN_SM_2_2026 | 6/26/2025 | 6/25/2026 | 7/1/2026 | 12/31/2026 |
| 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 | ||
| Semester | GNLN_SMG | GNLN_SMG_W_2026 | 9/26/2025 | 9/25/2026 | 10/1/2026 | 3/31/2027 |
| 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 | ||
| 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_2026 | 9/26/2024 | 9/25/2026 | 10/1/2026 | 9/30/2027 |
| 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 |